Cold Case is an American

Television in the United States

Television is one of the major mass media of the United States. Ninety-nine percent of American households have at least one television and the majority of households have more than one...

 police procedural

Police procedural

The police procedural is a subgenre of detective fiction which attempts to convincingly depict the activities of a police force as they investigate crimes. While traditional detective novels usually concentrate on a single crime, police procedurals frequently depict investigations into several...

 television series which ran on CBS

CBS

CBS Broadcasting Inc. is a major US commercial broadcasting television network, which started as a radio network. The name is derived from the initials of the network's former name, Columbia Broadcasting System. The network is sometimes referred to as the "Eye Network" in reference to the shape of...

 from September 28, 2003 to May 2, 2010. The series revolved around a fictionalized Philadelphia Police Department

Philadelphia Police Department

The Philadelphia Police Department is the police agency responsible for law enforcement and investigations within the City of Philadelphia, Pennsylvania...

 division that specializes in investigating cold cases. On May 18, 2010, CBS announced that the series had been canceled. The series currently airs in syndication on TNT in the U.S. and on Viva in Canada. Sleuth

Sleuth (TV channel)

Cloo is a digital cable television channel with programming dedicated to the crime and mystery genres. It is owned and operated by NBCUniversal. It launched on January 1, 2006, replacing Trio...

 channel occasionally airs it at midnight on the weekdays.