KMET was a Los Angeles

Los Ángeles

Los Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...

 radio station

Radio station

Radio broadcasting is a one-way wireless transmission over radio waves intended to reach a wide audience. Stations can be linked in radio networks to broadcast a common radio format, either in broadcast syndication or simulcast or both...

 originally owned by Metromedia

Metromedia

Metromedia was a media company that owned radio and television stations in the United States from 1956 to 1986 and owned Orion Pictures from 1986-1997.- Overview :...

 that first took to the air in June 1968 at 94.7 MHz and signed off on February 14, 1987. The station, nicknamed "The Mighty Met", was a pioneering station of the "underground" progressive rock

Progressive rock (radio format)

Progressive rock is a radio station programming format that prospered in the late 1960s and 1970s, in which the disc jockeys are given wide latitude in what they may play, similar to the freeform format but with the proviso that some kind of rock music is almost always what is played...

 format.
Like many FM stations at the time, KMET featured an automated format in June 1968 (with female voices and middle-of-the-road music). The origin of KMET’s freeform

Freeform

The word freeform may refer to:* Freeform , an alias used by experimental/IDM producer Simon Pyke* Freeform Style of Hardcore Techno influenced by trance.* Freeform Five, UK electro-house band...

 rock music

Rock music

Rock music is a genre of popular music that developed during and after the 1960s, particularly in the United Kingdom and the United States. It has its roots in 1940s and 1950s rock and roll, itself heavily influenced by rhythm and blues and country music...

 format came about due to events at a rival radio station.