The Christmas Invasion
Encyclopedia
"The Christmas Invasion" is a 60-minute special episode of the British
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 science fiction television series Doctor Who
Doctor Who
Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

. It is Christmas
Christmas
Christmas or Christmas Day is an annual holiday generally celebrated on December 25 by billions of people around the world. It is a Christian feast that commemorates the birth of Jesus Christ, liturgically closing the Advent season and initiating the season of Christmastide, which lasts twelve days...

, but there is little cause for celebration as planet Earth is invaded by aliens known as the Sycorax. It's up to Rose and the newly-regenerated Doctor to save humanity, with a bit of help from her boyfriend Mickey and her mother Jackie.

It began production in July 2005, and was broadcast on Christmas Day
Christmas
Christmas or Christmas Day is an annual holiday generally celebrated on December 25 by billions of people around the world. It is a Christian feast that commemorates the birth of Jesus Christ, liturgically closing the Advent season and initiating the season of Christmastide, which lasts twelve days...

 2005 in the United Kingdom and on Boxing Day
Boxing Day
Boxing Day is a bank or public holiday that occurs on 26 December, or the first or second weekday after Christmas Day, depending on national or regional laws. It is observed in Australia, Canada, New Zealand, the United Kingdom and some other Commonwealth nations. In Ireland, it is recognized as...

 2005 in Canada
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

.

This is the first full episode in which David Tennant
David Tennant
David Tennant is a Scottish actor. In addition to his work in theatre, including a widely praised Hamlet, Tennant is best known for his role as the tenth incarnation of the Doctor in Doctor Who, along with the title role in the 2005 TV serial Casanova and as Barty Crouch, Jr...

 appears as the Doctor
Doctor (Doctor Who)
The Doctor is the central character in the long-running BBC television science-fiction series Doctor Who, and has also featured in two cinema feature films, a vast range of spin-off novels, audio dramas and comic strips connected to the series....

, and also the first specially produced Christmas special in the series' history.

Plot

The Doctor
Tenth Doctor
The Tenth Doctor is the tenth incarnation of the protagonist of the long-running BBC television science-fiction series Doctor Who. He is played by David Tennant, who appears in three series, as well as eight specials...

, suffering from post-regeneration
Regeneration (Doctor Who)
Regeneration, in the British science fiction television series Doctor Who, is a biological ability exhibited by Time Lords, a race of fictional humanoids originating on the planet Gallifrey. This process allows a Time Lord who is old or mortally wounded to undergo a transformation into a new...

 effects, lands the TARDIS
TARDIS
The TARDISGenerally, TARDIS is written in all upper case letters—this convention was popularised by the Target novelisations of the 1970s...

 near Rose Tyler
Rose Tyler
Rose Marion Tyler is a fictional character portrayed by Billie Piper in the long-running British science fiction television series Doctor Who, and was created by series producer Russell T Davies...

's flat, where she, Jackie
Jackie Tyler
In "Rise of the Cybermen" and "The Age of Steel" Coduri plays a parallel Earth version of Jackie. In this universe, she is still married to Pete, but they have no children, although she has a Yorkshire terrier named Rose. Despite Pete's success, which has led to Jackie becoming a celebrity, they...

 and Mickey
Mickey Smith
Mickey Smith is a fictional character in the British science fiction television series Doctor Who, played by Noel Clarke.Mickey is introduced as the boyfriend of the Ninth and Tenth Doctor's companion Rose Tyler, and a recurring character on the programme...

 carry him into bed and dress him in bedclothes from Jackie's ex-beau. With little to do but wait for the Doctor to recover, Rose and Mickey go Christmas shopping. While out, they are attacked by masked Santa robots, and retreat to the safety of the flat, but find themselves facing an attack. The Doctor wakes, repels the attack and theorises that the energy of his regeneration is luring the unseen foe to him. Rose, Mickey, and Jackie keep a vigil while the Doctor rests, as he needs more time to recover.

Meanwhile, Prime Minister
Prime Minister of the United Kingdom
The Prime Minister of the United Kingdom of Great Britain and Northern Ireland is the Head of Her Majesty's Government in the United Kingdom. The Prime Minister and Cabinet are collectively accountable for their policies and actions to the Sovereign, to Parliament, to their political party and...

 Harriet Jones
Harriet Jones
Harriet Jones MP is a recurring fictional character played by Penelope Wilton in the long-running British science fiction television series Doctor Who. With the revival of Doctor Who in 2005, Jones was introduced in the two-part story "Aliens of London" and "World War Three" as an MP who aids the...

 and her science team prepare for a live broadcast across the globe from the space probe, "Guinevere One", once it lands on Mars. They are unaware it has been swallowed by a giant spaceship heading for Earth. When the broadcast is shown, an alien face appears. The Sycorax aliens demand Earth's surrender, and cause approximately one-third of the world's population to go into a hypnotic state and pose themselves on the edges of the tallest buildings nearby. The Sycorax threaten to send a signal to make them step off to their deaths if the invaders are not given half of the world's population as slaves. One of the technicians discovers all the hypnotised people share the same blood type, the same as contained in a sample on "Guinevere One". Harriet attempts further negotiations with the Sycorax, and is surprised to find herself and her staff transmatted aboard the ship.

As the Sycorax ship moves over London, Rose, Mickey and Jackie evacuate the Doctor to the TARDIS, but before Jackie can return with additional supplies, the TARDIS is detected by the Sycorax and is transported aboard their ship. When Rose and Mickey attempt to leave, they are shocked, accidentally dropping a container of tea that pours over the TARDIS innards, which begin to smoke. Rose attempts to use the same ploys the Doctor has in the past to scare the Sycorax, but they are not intimidated. This, however, gives enough time for the Doctor to fully recover, rejuvenated by the smoke from the spilled tea. He reintroduces himself to Rose, Mickey, and Harriet, and presses the button that would make the hypnotised humans jump, but he knew the hypnosis couldn't coerce those affected to kill themselves, therefore freeing them. The Doctor challenges the Sycorax leader to a sword fight for the fate of the Earth. During the fight, the leader slices off the Doctor's hand, which falls into the heart of London. But because the Doctor is still within the first 15 hours of regeneration he is able to grow a new hand, and then forces the Sycorax leader to submit. As the Doctor and his allies return inside the ship, the Sycorax leader attempts to attack the Doctor from behind. The Doctor hits a sensor with a fruit he found in his bathrobe, part of the wing folds and the leader falls to his death.

The Doctor forces the remaining Sycorax to leave Earth and promise never to return, and then returns to Earth with Rose, Mickey, and Harriet. As the Sycorax ship moves away, Harriet remotely orders "Torchwood
Torchwood Institute
The Torchwood Institute is a fictional secret organization from the British science fiction television series Doctor Who and its spin-off series Torchwood. It was established in 1879 by Queen Victoria after the events of "Tooth and Claw". Its prime directive, is to defend the earth against...

" to fire, causing five laser cannons to strike the ship and destroy it. The Doctor becomes furious with Harriet, who responds that it is their last defense when the Doctor is not present to save the world. He warns her not to challenge him, saying that he could bring down her government with six words: when Harriet firmly stands behind her decision, the Doctor walks over to her aide and whispers, "Don't you think she looks tired?" That evening, as snow (which is actually the ash from the destroyed ship) falls on London, the Doctor selects his new outfit from the TARDIS wardrobe, and joins Rose, Jackie, and Mickey for Christmas dinner. They watch Harriet Jones on the television, fending off rumours about her ill-health and a pending vote of no confidence
Motion of no confidence
A motion of no confidence is a parliamentary motion whose passing would demonstrate to the head of state that the elected parliament no longer has confidence in the appointed government.-Overview:Typically, when a parliament passes a vote of no...

 in the House of Commons
British House of Commons
The House of Commons is the lower house of the Parliament of the United Kingdom, which also comprises the Sovereign and the House of Lords . Both Commons and Lords meet in the Palace of Westminster. The Commons is a democratically elected body, consisting of 650 members , who are known as Members...

. The Doctor and Rose then get ready to set off again for more travels across space and time.

Continuity

  • Just before the opening credits sequence, Jackie says the line "Doctor? Doctor who?", continuing the long-running joke.
  • The special sees the return of MP
    Member of Parliament
    A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

     Harriet Jones
    Harriet Jones
    Harriet Jones MP is a recurring fictional character played by Penelope Wilton in the long-running British science fiction television series Doctor Who. With the revival of Doctor Who in 2005, Jones was introduced in the two-part story "Aliens of London" and "World War Three" as an MP who aids the...

     (Penelope Wilton
    Penelope Wilton
    Penelope Alice Wilton, OBE is an English actress.-Life and career:Penelope Alice Wilton was born in Scarborough, North Riding of Yorkshire, to a former actress mother and a businessman father. She is a niece of actors Bill Travers and Linden Travers and a cousin of the actor Richard Morant...

    ), from "Aliens of London
    Aliens of London
    "Aliens of London" is the fourth episode of the first series of the British science fiction television show Doctor Who that was first broadcast on 16 April 2005. The Doctor takes Rose back to 21st century London, just in time to witness a spaceship crashing into the River Thames, triggering a...

    " and "World War Three
    World War Three (Doctor Who)
    "World War Three" is the fifth episode of the first series in the British science fiction television series Doctor Who that was first broadcast on 23 April 2005. It is the second of a two-part story. The first part, "Aliens of London", was broadcast on 16 April...

    ". At the end of the latter episode, the Doctor stated that she would at some point become Prime Minister of the UK
    Prime Minister of the United Kingdom
    The Prime Minister of the United Kingdom of Great Britain and Northern Ireland is the Head of Her Majesty's Government in the United Kingdom. The Prime Minister and Cabinet are collectively accountable for their policies and actions to the Sovereign, to Parliament, to their political party and...

    , and by the time of "The Christmas Invasion" she has won a general election with a large majority.
  • The ability of the TARDIS to translate languages was first described as a "Time Lord gift" by the Fourth Doctor
    Fourth Doctor
    The Fourth Doctor is the fourth incarnation of the protagonist of the long-running BBC British television science-fiction series Doctor Who....

     in The Masque of Mandragora
    The Masque of Mandragora
    The Masque of Mandragora is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 4 September to 25 September 1976. It opened Season 14 of the series.-Synopsis:...

    (1976). Although not stated in the television series, fans came to assume over the years that this ability was a function of the TARDIS. In "The End of the World
    The End of the World (Doctor Who)
    "The End of the World" is the second episode of Series One of the British science-fiction television series Doctor Who. Written by show runner Russell T Davies and directed by Euros Lyn, the episode was first broadcast on 2 April 2005....

    " (2005), the Ninth Doctor
    Ninth Doctor
    The Ninth Doctor is the ninth incarnation of the protagonist of the long-running BBC television science-fiction series Doctor Who. He is played by Christopher Eccleston....

     confirmed that it was part of the TARDIS's telepathic field. Although the canonicity of the novels is uncertain, the 1995 Virgin New Adventures
    Virgin New Adventures
    The Virgin New Adventures were a series of novels from Virgin Publishing based on the British science-fiction television series Doctor Who...

     novel Set Piece
    Set Piece (Doctor Who)
    Set Piece is an original novel written by Kate Orman and based on the long-running British science fiction television series Doctor Who. It features the Seventh Doctor, Ace, Bernice and Kadiatu Lethbridge-Stewart. It is the last New Adventure to feature Ace as a regular character, although she...

    by Kate Orman
    Kate Orman
    Kate Orman is an Australian author, best known for her books connected to the British science-fiction television series Doctor Who.-Biography:...

     first established that the Doctor needed to be alive for the TARDIS's translation function to work.
  • The story of the Doctor Who spin-off Torchwood
    Torchwood
    Torchwood is a British science fiction television programme created by Russell T Davies. The series is a spin-off from Davies's 2005 revival of the long-running science fiction programme Doctor Who. The show has shifted its broadcast channel each series to reflect its growing audience, moving from...

    is "seeded" in this special and in the subsequent 2006 season.
  • The Big Ben
    Clock Tower, Palace of Westminster
    Big Ben is the nickname for the great bell of the clock at the north end of the Palace of Westminster in London, and is generally extended to refer to the clock or the clock tower as well. It is the largest four-faced chiming clock and the third-tallest free-standing clock tower in the world...

     clock tower is shown with scaffolding around it, in the process of being rebuilt since "Aliens of London".
  • While trying to bluff the Sycorax, Rose mentions "Article 15 of the Shadow Proclamation" ("Rose
    Rose (Doctor Who)
    "Rose" is the first episode of Series One of the British science-fiction television series Doctor Who. Written by show runner Russell T Davies and directed by Keith Boak, the episode was first broadcast on 26 March 2005....

    "), the Slitheen
    Slitheen
    The Slitheen are a family of massive, bipedal extraterrestrials from the British science fiction television series Doctor Who and they are adversaries of the Doctor. They first appeared in the 2005 series episodes "Aliens of London" and "World War Three", and subsequently recur in later episodes of...

     Parliament of Raxacoricofallapatorius ("Aliens of London", "World War Three" and "Boom Town
    Boom Town (Doctor Who)
    "Boom Town" is an episode in the British science fiction television series Doctor Who, which was first broadcast on 4 June 2005. The Doctor, Rose and Jack travel to modern-day Cardiff and meet up with Rose's boyfriend, Mickey...

    "), the Gelth Confederacy ("The Unquiet Dead
    The Unquiet Dead
    "The Unquiet Dead" is an episode in the British science-fiction television series Doctor Who that was first broadcast on 9 April 2005 and is the first episode of the revival to be set in the past. In Victorian Cardiff, the dead are walking, and creatures made of gas are on the loose...

    "), the Mighty Jagrafess ("The Long Game
    The Long Game
    "The Long Game" is an episode in the British science fiction television series Doctor Who that was first broadcast on May 7, 2005. Along with new companion Adam, the TARDIS deposits the Doctor and Rose on Satellite 5, a space station that broadcasts across the entire human empire...

    ") and the Dalek
    Dalek
    The Daleks are a fictional extraterrestrial race of mutants from the British science fiction television series Doctor Who. Within the series, Daleks are cyborgs from the planet Skaro, created by the scientist Davros during the final years of a thousand-year war against the Thals...

    s.
  • Although the Ninth Doctor
    Ninth Doctor
    The Ninth Doctor is the ninth incarnation of the protagonist of the long-running BBC television science-fiction series Doctor Who. He is played by Christopher Eccleston....

     stated at the end of "World War Three" that Jones would be elected for three successive terms, her status as Prime Minister appears in jeopardy at the end of "The Christmas Invasion", which takes place during her first term. The commentary for this episode implies that her career does not survive, which is confirmed in "The Sound of Drums
    The Sound of Drums
    "The Sound of Drums" is an episode of the British science fiction television series Doctor Who. It was broadcast on BBC One on 23 June 2007, and is the twelfth episode of Series 3 of the revived Doctor Who series...

    ", as the Master
    Master (Doctor Who)
    The Master is a recurring character in the British science fiction television series Doctor Who. He is a renegade Time Lord and the archenemy of the Doctor....

     becomes Prime Minister under the guise of Harold Saxon.
  • A burgundy scarf resembling the one worn by the Fourth Doctor
    Fourth Doctor
    The Fourth Doctor is the fourth incarnation of the protagonist of the long-running BBC British television science-fiction series Doctor Who....

     can be seen in some of the wardrobe scenes — this is a replica owned by producer Phil Collinson, made for him by his aunt when he was a child. (The Doctor's scarf was seen to be unravelled in Castrovalva, but it is likely that he had more than one. The Seventh
    Seventh Doctor
    The Seventh Doctor is the seventh incarnation of the protagonist of the long-running BBC television science-fiction series Doctor Who. He was portrayed by the actor Sylvester McCoy....

     and Eighth Doctor
    Eighth Doctor
    The Eighth Doctor is the eighth incarnation of the protagonist of the long-running BBC television science-fiction series Doctor Who. He was portrayed by Paul McGann...

    s also tried on long scarves after their regenerations, in Time and the Rani
    Time and the Rani
    Time and the Rani is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 7 September to 28 September 1987. This story was the first to feature Sylvester McCoy as the Doctor. It also features the last appearance of the Sixth...

    and the 1996 television film
    Doctor Who (1996)
    Doctor Who is a television movie based on the British science fiction television series Doctor Who. Developed as a co-production amongst Universal Television, BBC Television, BBC Worldwide, and the American network FOX, the 1996 television film premiered on 12 May 1996 on CITV in Edmonton,...

    , respectively.) Also, the first outfit the Doctor picks from the rail is (or looks similar to) an outfit worn by David Tennant
    David Tennant
    David Tennant is a Scottish actor. In addition to his work in theatre, including a widely praised Hamlet, Tennant is best known for his role as the tenth incarnation of the Doctor in Doctor Who, along with the title role in the 2005 TV serial Casanova and as Barty Crouch, Jr...

     in Casanova
    Casanova (2005 TV serial)
    Casanova is a 2005 British television comedy drama serial, written by television scriptwriter Russell T Davies and directed by Sheree Folkson...

    . According to the commentary for this episode on the BBC's official website, all of the costumes from the Doctor's nine previous incarnations are included somewhere in the wardrobe.
  • At his request, David Tennant
    David Tennant
    David Tennant is a Scottish actor. In addition to his work in theatre, including a widely praised Hamlet, Tennant is best known for his role as the tenth incarnation of the Doctor in Doctor Who, along with the title role in the 2005 TV serial Casanova and as Barty Crouch, Jr...

     was credited as "The Doctor" rather than "Doctor Who" as Christopher Eccleston
    Christopher Eccleston
    Christopher Eccleston is an English stage, film and television actor. His films include Let Him Have It, Shallow Grave, Elizabeth, 28 Days Later, Gone in 60 Seconds, The Others, and G.I. Joe: The Rise of Cobra...

     had been in Series 1, the first appearance of the definite article since Episode 3 of Survival
    Survival (Doctor Who)
    -Writing:Writer Rona Munro approached script editor Andrew Cartmel at a BBC scriptwriting workshop and said that she'd "kill to write for Doctor Who." The story Munro developed incorporated themes including the morals of hunting...

    (1989). However, on the DVD commentary version in the Complete Second Series Box Set, the credit reverts back to "Doctor Who". This is because the commentary team were watching an earlier edit of the episode.

Production

  • This special was the first full episode starring David Tennant
    David Tennant
    David Tennant is a Scottish actor. In addition to his work in theatre, including a widely praised Hamlet, Tennant is best known for his role as the tenth incarnation of the Doctor in Doctor Who, along with the title role in the 2005 TV serial Casanova and as Barty Crouch, Jr...

     as the Tenth Doctor; he was only shown briefly at the end of "The Parting of the Ways
    The Parting of the Ways
    "The Parting of the Ways" is an episode in the British science fiction television series Doctor Who, which was first broadcast on 18 June 2005. It was the second episode of the two-part story that featured Christopher Eccleston making his last appearance as the Ninth Doctor...

    " for the regeneration sequence. A 7-minute "mini-episode"
    Doctor Who: Children in Need
    "Doctor Who: Children in Need", also known as "Born Again", is a 7-minute mini-episode of the British science fiction television series Doctor Who...

    , set between "The Parting of the Ways" and "The Christmas Invasion", was shown as part of the Children in Need
    Children in Need
    Children in Need is an annual British charity appeal organised by the BBC. Since 1980 it has raised over £500 million. The highlight of the Children in Need appeal is an annual telethon, held in November. A teddy bear named "Pudsey Bear" fronts the campaign, while Terry Wogan is a long...

     charity telethon on 18 November 2005.
  • The Christmas special is a tradition in British television series. While this is the first story for Doctor Who clearly labelled as a Christmas special, the seventh episode of The Daleks' Master Plan
    The Daleks' Master Plan
    The Daleks' Master Plan is a serial in the British science fiction television series Doctor Who. The twelve episodes were aired from 13 November 1965 to 29 January 1966...

    , titled "The Feast of Steven", was written as a Christmas episode, even featuring a fourth wall
    Fourth wall
    The fourth wall is the imaginary "wall" at the front of the stage in a traditional three-walled box set in a proscenium theatre, through which the audience sees the action in the world of the play...

    -breaking Christmas wish to the viewers by William Hartnell
    William Hartnell
    William Henry Hartnell was an English actor. During 1963-66, he was the first actor to play the Doctor in the long-running BBC science fiction television series Doctor Who.-Early life:...

    . Although not shown at Christmas, "The Unquiet Dead
    The Unquiet Dead
    "The Unquiet Dead" is an episode in the British science-fiction television series Doctor Who that was first broadcast on 9 April 2005 and is the first episode of the revival to be set in the past. In Victorian Cardiff, the dead are walking, and creatures made of gas are on the loose...

    " was set on Christmas Eve, 1869.
  • The Tenth Doctor speaks with an Estuary English
    Estuary English
    Estuary English is a dialect of English widely spoken in South East England, especially along the River Thames and its estuary. Phonetician John C. Wells defines Estuary English as "Standard English spoken with the accent of the southeast of England"...

     accent, in contrast to the Ninth Doctor
    Ninth Doctor
    The Ninth Doctor is the ninth incarnation of the protagonist of the long-running BBC television science-fiction series Doctor Who. He is played by Christopher Eccleston....

    's Northern one. In a 23 December interview on BBC Radio 1
    BBC Radio 1
    BBC Radio 1 is a British national radio station operated by the British Broadcasting Corporation which also broadcasts internationally, specialising in current popular music and chart hits throughout the day. Radio 1 provides alternative genres after 7:00pm including electronic dance, hip hop, rock...

    , Tennant explained that a line had been scripted for the Christmas special explaining that the newly regenerated Doctor had imprinted on Rose's accent, "like a chick hatching from an egg," but the line was cut from the final programme. He also briefly affects an American Appalachian
    Appalachian English
    Appalachian English is a common name for the Southern Midland dialect of American English. This dialect is spoken primarily in the Central and Southern Appalachian Mountain region of the Eastern United States, namely in North Georgia, Northwestern South Carolina, Southern West Virginia,...

     accent (when he regrows his hand and continues his fight with the Sycorax leader, he claims his hand is a "fightin' hand" in that accent).
  • The episode's opening shot is a repeat of the opening shot of "Rose
    Rose (Doctor Who)
    "Rose" is the first episode of Series One of the British science-fiction television series Doctor Who. Written by show runner Russell T Davies and directed by Keith Boak, the episode was first broadcast on 26 March 2005....

    ", using a new arrangement of the same music.
  • During the live broadcast, the front page of the official BBC website stated: "THE CHRISTMAS INVASION is on BBC One NOW. HARRIET JONES SAYS: Switch this website off for Britain."
  • The tie-in website "Who is Doctor Who?" was also updated with a message from Mickey referencing the Guinevere One website, and an appeal to the Doctor
    Doctor (Doctor Who)
    The Doctor is the central character in the long-running BBC television science-fiction series Doctor Who, and has also featured in two cinema feature films, a vast range of spin-off novels, audio dramas and comic strips connected to the series....

     to bring back Rose.
  • The cone-shaped building which has all its glass blown out from the ship's shockwave is 30 St Mary Axe
    30 St Mary Axe
    30 St Mary Axe, the Swiss Re Building , is a skyscraper in London's main financial district, the City of London, completed in December 2003 and opened at the end of May 2004...

    , also known as the Swiss Re Building or "The Gherkin".
  • The climactic scenes of the episode were shot on location at Wallis House, Brentford
    Brentford
    Brentford is a suburban town in west London, England, and part of the London Borough of Hounslow. It is located at the confluence of the River Thames and the River Brent, west-southwest of Charing Cross. Its former ceremonial county was Middlesex.-Toponymy:...

    , one of the Golden Mile
    Golden Mile (Brentford)
    The Golden Mile is the name given to a stretch of the Great West Road north of Brentford running west from the western boundary of Chiswick in London, United Kingdom.It was so called due to the concentration of industry along this short stretch of road...

    's few remaining Art Deco
    Art Deco
    Art deco , or deco, is an eclectic artistic and design style that began in Paris in the 1920s and flourished internationally throughout the 1930s, into the World War II era. The style influenced all areas of design, including architecture and interior design, industrial design, fashion and...

     buildings, directly opposite the Clayponds Avenue location for Invasion of the Dinosaurs
    Invasion of the Dinosaurs
    Invasion of the Dinosaurs is a serial in the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from 12 January to 16 February 1974.-Synopsis:...

    .
  • Parts of the episode were filmed at the Clearwell Caves
    Clearwell Caves
    Clearwell Caves, at Clearwell in the Forest of Dean, Gloucestershire, England, is a natural cave system which has been extensively mined for iron ore. It now operates primarily as a mining museum....

     in Gloucestershire
    Gloucestershire
    Gloucestershire is a county in South West England. The county comprises part of the Cotswold Hills, part of the flat fertile valley of the River Severn, and the entire Forest of Dean....

    .
  • The prototype of the Sycorax swords was auctioned on eBay
    EBay
    eBay Inc. is an American internet consumer-to-consumer corporation that manages eBay.com, an online auction and shopping website in which people and businesses buy and sell a broad variety of goods and services worldwide...

     to raise funds for the Great Ormond Street Hospital
    Great Ormond Street Hospital
    Great Ormond Street Hospital for Children is a children's hospital located in London, United Kingdom...

     Children's Charity. It raised £920.51.
  • In the pre-credits teaser, actor Noel Clarke nearly corpses
    Corpsing
    Corpsing is a British theatrical slang term used to describe when an actor unintentionally breaks character during a scene by laughing or by causing another cast member to laugh...

     due to David Tennant's performance, turning his face away from the latter as he says, "Merry Christmas!".

Music

  • The song playing during the wardrobe sequence, "Song for Ten" (named in reference to the Tenth Doctor), was composed by Murray Gold
    Murray Gold
    Murray Gold is an English composer for stage, film, and television and a dramatist for both theatre and radio.-Television:Gold has been nominated for a BAFTA four times in the category Best Original Television Music, for Vanity Fair , Queer as Folk , Casanova and Doctor Who...

     for the episode and sung by Tim Phillips
    Tim Phillips (musician)
    Tim Phillips is a Canadian composer and singer-songwriter, based in London, England.He has written music for many screen productions, including HBO's Entourage, the ITV serial Talk To Me and the Channel 4 series Shameless, produced by Company Pictures...

    . The last time an original song was written for the series was "The Ballad of the Last Chance Saloon" in The Gunfighters
    The Gunfighters
    The Gunfighters is a serial in the British science fiction television series Doctor Who, set in 19th Century America on the days leading up to the famous Gunfight at the O.K. Corral...

    (1966). "Song for Ten" is also featured as a slower, instrumental version near the end of the episode "School Reunion
    School Reunion (Doctor Who)
    "School Reunion" is the third episode in the second series of the British science fiction television series Doctor Who. It first aired on 29 April 2006. The episode's narrative takes place some time after the events of "The Christmas Invasion"...

    ".
  • The closing credits had a new theme arrangement restoring the traditional "middle eight"
    Thirty-two-bar form
    The thirty-two-bar form, often called AABA from the musical form or order in which its melodies occur, is common in Tin Pan Alley songs and later popular music including rock, pop and jazz...

     section of the theme which had been omitted in the 2005 series. This was performed by the BBC National Orchestra of Wales
    BBC National Orchestra of Wales
    The BBC National Orchestra of Wales is a Welsh symphony orchestra and one of the BBC's five professional orchestras. The BBC NOW is the only professional symphony orchestra organisation in Wales, occupying a dual role as both a broadcasting orchestra and national orchestra.The BBC NOW has its...

    , conducted by the series' composer Murray Gold
    Murray Gold
    Murray Gold is an English composer for stage, film, and television and a dramatist for both theatre and radio.-Television:Gold has been nominated for a BAFTA four times in the category Best Original Television Music, for Vanity Fair , Queer as Folk , Casanova and Doctor Who...

    . This arrangement was subsequently used for the closing titles of the 2006 series. The Canadian broadcast used a different version without the middle eight for its Coming Soon trailer.
  • Various pieces of music featured in this episode were released in December 2006 as part of the Doctor Who Soundtrack
    Doctor Who: Original Television Soundtrack
    Doctor Who: Original Television Soundtrack is a soundtrack album released on 4 December 2006, containing incidental music composed by Murray Gold and used in the 2005 and 2006 series of Doctor Who....

     (produced by Silva Screen). These included the "Song for Ten", the music played behind Harriet Jones' speech and the music played as the spaceship arrives over London. The version of "Song for Ten" released on the soundtrack, however, is not the version from the episode; this is a newly recorded version with vocals sung by Neil Hannon
    Neil Hannon
    Neil Hannon is a Northern Irish singer and songwriter, best known as the creator and frontman of the chamber pop group The Divine Comedy. The band's official website even goes so far as to say, "The Divine Comedy is Neil Hannon," and Hannon is quoted in an interview as saying, "The Divine Comedy...

     and additional lyrics referring to the events of the season finale, "Doomsday
    Doomsday (Doctor Who)
    "Doomsday" is the thirteenth and final episode in the second series of the revival of the British science fiction television series Doctor Who. It was first broadcast on 8 July 2006 and is the conclusion of a two-part story; the first part, "Army of Ghosts", was broadcast on 1 July 2006...

    ".

Cast Notes

  • Lachele Carl
    Lachele Carl
    Lachele Carl is an American actress based in England.She has appeared in Grange Hill, Batman and Alien Autopsy.She also plays the recurring character of American news anchor Trinity Wells in Doctor Who, appearing in the episodes "Aliens of London", "World War Three", "The Christmas Invasion", "The...

     reappears as the reporter seen in "Aliens of London
    Aliens of London
    "Aliens of London" is the fourth episode of the first series of the British science fiction television show Doctor Who that was first broadcast on 16 April 2005. The Doctor takes Rose back to 21st century London, just in time to witness a spaceship crashing into the River Thames, triggering a...

    " / "World War Three
    World War Three (Doctor Who)
    "World War Three" is the fifth episode of the first series in the British science fiction television series Doctor Who that was first broadcast on 23 April 2005. It is the second of a two-part story. The first part, "Aliens of London", was broadcast on 16 April...

    ". She is later seen in "The Sound of Drums", "The Poison Sky
    The Poison Sky
    "The Poison Sky" is the fifth episode of the fourth series of British science fiction television series Doctor Who. It was broadcast on BBC One on 3 May 2008. The episode features both former companion Martha Jones and the alien Sontarans...

    ", "Turn Left
    Turn Left (Doctor Who)
    "Turn Left" is the eleventh episode of the fourth series of British science fiction television series Doctor Who. It was written by showrunner Russell T Davies and broadcast on BBC One on 21 June 2008....

    ", "The Stolen Earth
    The Stolen Earth
    "The Stolen Earth" is the twelfth episode of the fourth series and the 750th overall episode of the British science fiction television series Doctor Who. The episode was written by show runner and head writer Russell T Davies and is the first of a two-part crossover story; the concluding episode is...

    " and The Sarah Jane Adventures
    The Sarah Jane Adventures
    The Sarah Jane Adventures is a British science fiction television series, produced by BBC Cymru Wales for CBBC, created by Russell T Davies and starring Elisabeth Sladen...

    story Revenge of the Slitheen
    Revenge of the Slitheen
    Revenge of the Slitheen is the second story of the British science fiction television series The Sarah Jane Adventures. It comprises the first and second episodes of the show's first series, aired on BBC1, broadcast in two parts on September 24 and October 1, 2007, with the second being broadcast a...

    .

Outside references

  • The British Government plan to cover up the Sycorax's initial appearance by claiming it was a student in a mask hacking into the signal. A 1987 WTTW
    WTTW
    WTTW channel 11 is one of three Public Broadcasting Service member public television stations serving the Chicago, Illinois market; the others are WYCC and WYIN. WTTW began broadcasting on September 6, 1955 and it is owned and operated by Window to the World Communications, Inc., a not-for-profit...

     broadcast in Chicago
    Chicago
    Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the US, after New York City and Los Angeles...

     of the Fourth Doctor
    Fourth Doctor
    The Fourth Doctor is the fourth incarnation of the protagonist of the long-running BBC British television science-fiction series Doctor Who....

     serial Horror of Fang Rock
    Horror of Fang Rock
    Horror of Fang Rock is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 3 September to 24 September 1977.-Synopsis:...

    was interrupted in this way with the hacker wearing a Max Headroom
    Max Headroom (character)
    Max Headroom is a fictional British artificial intelligence, known for his wit and stuttering, distorted, electronically sampled voice. The character was created by George Stone, Annabel Jankel, and Rocky Morton in the mid nineteen eighties, and portrayed by Matt Frewer as "The World's first...

     mask, while in 1977 a voice claiming to be an alien broke into the signal belonging to the Southern Television
    Southern Television
    Southern Television was the first ITV broadcasting licence holder for the south and south-east of England from 30 August 1958 until the night of 31 December 1981. The company was launched as Southern Television Limited and the title Southern Television was consistently used on-air throughout its life...

     region of ITV
    ITV
    ITV is the major commercial public service TV network in the United Kingdom. Launched in 1955 under the auspices of the Independent Television Authority to provide competition to the BBC, it is also the oldest commercial network in the UK...

    .
  • Sycorax
    Sycorax
    Sycorax is a character mentioned though not seen in William Shakespeare's play The Tempest.Sycorax may also refer to:*Sycorax , a moon of Uranus, named after the fictional character...

     is the name of the witch in Shakespeare's
    William Shakespeare
    William Shakespeare was an English poet and playwright, widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's national poet and the "Bard of Avon"...

     play The Tempest
    The Tempest
    The Tempest is a play by William Shakespeare, believed to have been written in 1610–11, and thought by many critics to be the last play that Shakespeare wrote alone. It is set on a remote island, where Prospero, the exiled Duke of Milan, plots to restore his daughter Miranda to her rightful place,...

    . In the later episode "The Shakespeare Code
    The Shakespeare Code
    "The Shakespeare Code" is an episode of the British science fiction television series Doctor Who. It was broadcast on BBC One on 7 April 2007, and is the second episode of Series 3 of the revived Doctor Who series. According to the BARB figures this episode was seen by 7.23 million viewers and was...

    ", the Doctor makes a brief reference to the Sycorax in front of the playwright, who decides to use the word somewhere.
  • The Doctor's right hand is severed in a swordfight on the surface of the Sycorax spacecraft. The fate of the sword is addressed in an interactive "mini-mission" that starts at Mickey's website. The fate of the hand itself is revealed in the Torchwood episode "Everything Changes
    Everything Changes (Torchwood)
    "Everything Changes" is the first episode of the British science fiction television programme Torchwood, which was first broadcast on 22 October 2006.-Synopsis:Police constable Gwen Cooper comes across the mysterious organisation known as Torchwood...

    ".
  • Harriet Jones's order to destroy the retreating Sycorax ship is a reference to Margaret Thatcher
    Margaret Thatcher
    Margaret Hilda Thatcher, Baroness Thatcher, was Prime Minister of the United Kingdom from 1979 to 1990...

    's decision to attack the General Belgrano
    ARA General Belgrano
    The ARA General Belgrano was an Argentine Navy light cruiser in service from 1951 until 1982. Formerly the , she saw action in the Pacific theater of World War II before being sold to Argentina. After almost 31 years of service, she was sunk during the Falklands War by the Royal Navy submarine ...

    in the Falklands War
    Falklands War
    The Falklands War , also called the Falklands Conflict or Falklands Crisis, was fought in 1982 between Argentina and the United Kingdom over the disputed Falkland Islands and South Georgia and the South Sandwich Islands...

    . The Doctor's six words that would bring down Harriet's administration ("Don't you think she looks tired?") are a reference to rumours about how Thatcher looked tired at the end of her term of office in 1990.

Popular culture allusions and in-jokes

This episode included various allusions to popular culture
Popular culture
Popular culture is the totality of ideas, perspectives, attitudes, memes, images and other phenomena that are deemed preferred per an informal consensus within the mainstream of a given culture, especially Western culture of the early to mid 20th century and the emerging global mainstream of the...

:
  • The organisation that developed the spaceprobe, as mentioned on the website, is the British Rocket Group. Its logo is half-seen in the background during the televised press conference. This is a reference to the British Experimental Rocket Group from the Quatermass
    Bernard Quatermass
    Professor Bernard Quatermass is a fictional scientist, originally created by the writer Nigel Kneale for BBC Television. An intelligent and highly moral British scientist, Quatermass is a pioneer of the British space programme, heading up the British Experimental Rocket Group...

    serials of the 1950s. The British Rocket Group was first mentioned in Doctor Who in Remembrance of the Daleks
    Remembrance of the Daleks
    Remembrance of the Daleks is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 5 October to 26 October 1988....

    (1988). David Tennant starred in the 2005 BBC remake of The Quatermass Experiment as Dr Gordon Briscoe. Bernard Quatermass
    Bernard Quatermass
    Professor Bernard Quatermass is a fictional scientist, originally created by the writer Nigel Kneale for BBC Television. An intelligent and highly moral British scientist, Quatermass is a pioneer of the British space programme, heading up the British Experimental Rocket Group...

     is also mentioned in "Planet of the Dead
    Planet of the Dead
    "Planet of the Dead" is the first 2009 special of the British science fiction television series Doctor Who that was simultaneously broadcast on BBC One and BBC HD on 11 April 2009. It was the second of five special episodes broadcast throughout 2009 and early 2010, which served as lead actor...

    ".
  • When the Doctor is trying to persuade the Sycorax leader to spare humanity, he finds himself quoting the first few lines of the song "Circle of Life
    Circle of Life
    The song was re-recorded in 2003 by the Disney Channel Circle of Stars, a group of actors and actresses who have appeared in Disney Channel television series and original movies...

    " from the Walt Disney
    Walt Disney
    Walter Elias "Walt" Disney was an American film producer, director, screenwriter, voice actor, animator, entrepreneur, entertainer, international icon, and philanthropist, well-known for his influence in the field of entertainment during the 20th century. Along with his brother Roy O...

     animated film The Lion King
    The Lion King
    The Lion King is a 1994 American animated film produced by Walt Disney Feature Animation and released by Walt Disney Pictures. It is the 32nd feature in the Walt Disney Animated Classics series...

    (1994).
  • Arthur Dent
    Arthur Dent
    Arthur Philip Dent is a fictional character, the hapless protagonist and anti-hero in the comic science fiction series The Hitchhiker's Guide to the Galaxy by Douglas Adams....

     is mentioned by the Doctor, in reference both to the dressing gown he is wearing (the Doctor comments on how saving the world while in a dressing gown is very much like Dent), and to his being revived by Dent's favourite drink, tea. He mentioned Arthur Dent as being a pleasant person in the sense as if he had meet him hinting that both franchises might exist in the same continuity. The Doctor previously quoted The Hitchhiker's Guide to the Galaxy
    The Hitchhiker's Guide to the Galaxy
    The Hitchhiker's Guide to the Galaxy is a science fiction comedy series created by Douglas Adams. Originally a radio comedy broadcast on BBC Radio 4 in 1978, it was later adapted to other formats, and over several years it gradually became an international multi-media phenomenon...

    in Ghost Light
    Ghost Light (Doctor Who)
    -Pre-production:Working titles for this story included The Bestiary and Life-Cycle. As revealed in the production notes for the DVD release, the story was renamed Das Haus der tausend Schrecken upon translation into German.The story evolved out of an earlier, rejected script entitled Lungbarrow...

    , and mentions Oolon Colluphid in Destiny of the Daleks
    Destiny of the Daleks
    Destiny of the Daleks is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 1 September to 22 September 1979. The story introduces Lalla Ward as the newly-regenerated Romana....

    . Douglas Adams
    Douglas Adams
    Douglas Noel Adams was an English writer and dramatist. He is best known as the author of The Hitchhiker's Guide to the Galaxy, which started life in 1978 as a BBC radio comedy before developing into a "trilogy" of five books that sold over 15 million copies in his lifetime, a television...

    , the creator of Hitchhiker's Guide, was script editor for Doctor Who during 1979-1980, and wrote or co-wrote the serials The Pirate Planet
    The Pirate Planet
    The Pirate Planet is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 30 September to 21 October 1978. It forms the second serial of The Key to Time...

    , City of Death
    City of Death
    -Pre-production:Writer David Fisher had contributed two scripts to Doctor Whos sixteenth season – The Stones of Blood and The Androids of Tara – and was asked by producer Graham Williams for further story ideas...

    and Shada
    Shada
    Shada is an unaired serial of the British science fiction television series Doctor Who. It was intended to be the final serial of the 1979-80 season , but was never completed due to a strike at the BBC during filming...

    .

Broadcast and DVD release

  • A "Coming Soon" trailer was shown at the end of this episode, featuring brief clips from the forthcoming series (up to "The Age of Steel
    The Age of Steel
    "The Age of Steel" is an episode of the British science fiction television series Doctor Who. It was first broadcast on 20 May 2006 and is the second part of a two-part story that was the first to feature the Cybermen since Silver Nemesis in 1988. The first part, "Rise of the Cybermen", was...

    ").
  • This was the first original episode of Doctor Who ever to premiere on a Sunday. (Although for a period in the mid-1970s, BBC Wales
    BBC Wales
    BBC Cymru Wales is a division of the British Broadcasting Corporation for Wales. Based at Broadcasting House in the Llandaff area of Cardiff, it directly employs over 1200 people, and produces a broad range of television, radio and online services in both the Welsh and English languages.Outside...

     premiered the series on Sunday rather than Saturday evenings, one day after the rest of the UK had seen the episodes).
  • Immediately after "The Christmas Invasion", digital
    Digital television
    Digital television is the transmission of audio and video by digital signals, in contrast to the analog signals used by analog TV...

     viewers were able to press their red button to view a special interactive episode, "Attack of the Graske
    Attack of the Graske
    "Attack of the Graske" is an interactive mini-episode of the British science fiction television series Doctor Who that was first broadcast on the BBC Red Button service on 25 December 2005. It is now available as an online game on the official Doctor Who website.-Synopsis:The human race is in...

    " written by Gareth Roberts
    Gareth Roberts (writer)
    Gareth John Pritchard Roberts is a British television screenwriter and novelist, best known for his work related to the science-fiction television series Doctor Who...

     and starring Tennant as the Doctor.
  • Overnight ratings for the episode gave a peak viewing audience of 9.8 million viewers, and an average of 9.4 — the second highest rated programme of the evening, behind EastEnders
    EastEnders
    EastEnders is a British television soap opera, first broadcast in the United Kingdom on BBC One on 19 February 1985 and continuing to today. EastEnders storylines examine the domestic and professional lives of the people who live and work in the fictional London Borough of Walford in the East End...

    .
  • The Canadian presentation on the CBC
    Canadian Broadcasting Corporation
    The Canadian Broadcasting Corporation, commonly known as CBC and officially as CBC/Radio-Canada, is a Canadian crown corporation that serves as the national public radio and television broadcaster...

     on 26 December 2005 was hosted by Piper, who was attired for the occasion in a red Roots
    Roots Canada Ltd.
    Roots Canada Ltd. is a Canadian clothing and lifestyle products retailer. The retail stores sell Roots' own brand of products in Canada, the United States and Asia...

     "Canada" sweatshirt. The episode was scheduled in a 90-minute long slot; as the episode and the presentations took less than the allotted time, the rest of the broadcast was filled with the start of two episodes of the animated programme Creature Comforts
    Creature Comforts
    Creature Comforts was originally a 1989 British humorous animated short film about how animals feel about living in a zoo, featuring the voices of the British public "spoken" by the animals. It was created by Nick Park and Aardman Animations...

    , which was set for the following 30-minute slot.
  • This episode was released together with "New Earth
    New Earth
    "New Earth" is the first episode of the second series of the British science fiction television series Doctor Who, first broadcast on 15 April 2006. It is a sequel to the first series episode "The End of the World", and brings back its villain who was thought to be destroyed, Lady Cassandra, as...

    " as a basic DVD
    DVD
    A DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions....

     with no special features on 1 May 2006, and as part of a second series boxset on 20 November 2006. This release included an in-vision commentary
    Audio commentary
    On disc-based video formats, an audio commentary is an additional audio track consisting of a lecture or comments by one or more speakers, that plays in real time with video...

     with Russell T Davies, Julie Gardner
    Julie Gardner
    Julie Gardner is a Welsh television producer. Her most prominent work has been serving as executive producer on the 2005 revival of Doctor Who and its spin-off shows Torchwood and The Sarah Jane Adventures...

     (Head of Drama for BBC Wales
    BBC Wales
    BBC Cymru Wales is a division of the British Broadcasting Corporation for Wales. Based at Broadcasting House in the Llandaff area of Cardiff, it directly employs over 1200 people, and produces a broad range of television, radio and online services in both the Welsh and English languages.Outside...

    ) and Phil Collinson, recorded before the story aired. This commentary was also made available as an MP3
    MP3
    MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is a patented digital audio encoding format using a form of lossy data compression...

     on the BBC Doctor Who website.
  • The special was repeated on BBC One on 17 December 2006.
  • The special premiered on BBC America
    BBC America
    BBC America is an American television network, owned and operated by BBC Worldwide, and available on both cable and satellite.-History:The channel launched on March 29, 1998, broadcasting comedy, drama and lifestyle programs from BBC Television and other British television broadcasters like ITV and...

     in 2007. Unlike the Sci-Fi version, the episode was edited down to fit inside a one-hour timeslot with commercial breaks. "Missing" content included a few short clips during the sequence when everyone goes into a trance and heads for the roof, and the wardrobe sequence towards the end. The BBCAmerica version (currently being shown in "rerun rotation") cuts directly from the long shot of Jones and her assistant to the shot of Jones on TV being questioned, the Doctor already in the dining room with Rose et al, and dressed. They also pick up several minutes by omitting the "Coming Soon" sequence and replacing the original closing credits with BBCAmerica's shortened version.

Pre-release publicity

  • On 3 December 2005, the annual Christmas
    Christmas
    Christmas or Christmas Day is an annual holiday generally celebrated on December 25 by billions of people around the world. It is a Christian feast that commemorates the birth of Jesus Christ, liturgically closing the Advent season and initiating the season of Christmastide, which lasts twelve days...

     edition of the BBC's listings magazine Radio Times
    Radio Times
    Radio Times is a UK weekly television and radio programme listings magazine, owned by the BBC. It has been published since 1923 by BBC Magazines, which also provides an on-line listings service under the same title...

    was released, featuring a Doctor Who cover to tie-in with "The Christmas Invasion". This was the first time Doctor Who had featured on the Christmas edition cover in the show's forty-two year history, and the first Christmas cover for an individual BBC television drama since EastEnders
    EastEnders
    EastEnders is a British television soap opera, first broadcast in the United Kingdom on BBC One on 19 February 1985 and continuing to today. EastEnders storylines examine the domestic and professional lives of the people who live and work in the fictional London Borough of Walford in the East End...

    in 1986. The Christmas Radio Times cover usually features artwork of a generic Christmas scene.
  • As confirmed by Russell T Davies in the episode commentary, the Doctor Who section of that issue of the Radio Times contains a hidden message explaining what saves the Doctor: many of the paragraphs in the articles have an oversized first letter, which taken consecutively spell out "A cup of tea" (in the manner of an acrostic
    Acrostic
    An acrostic is a poem or other form of writing in which the first letter, syllable or word of each line, paragraph or other recurring feature in the text spells out a word or a message. As a form of constrained writing, an acrostic can be used as a mnemonic device to aid memory retrieval. A famous...

    ).
  • This episode was the highest-rated episode of the Tenth Doctor
    Tenth Doctor
    The Tenth Doctor is the tenth incarnation of the protagonist of the long-running BBC television science-fiction series Doctor Who. He is played by David Tennant, who appears in three series, as well as eight specials...

     era, with final ratings at 9.84 million, up until the Voyage of the Damned
    Voyage of the Damned (Doctor Who)
    "Voyage of the Damned" is an episode of the British science fiction television series Doctor Who. First broadcast on 25 December 2007, it is 72 minutes long and the third Christmas special since the show's revival in 2005...

    , which achieved an audience of 13.8 million viewers.

External links


Reviews

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