Free FM was a short-lived, mostly-talk-radio format and brand name for eleven FM CBS Radio stations in the United States, and was created because of Howard Stern's departure to Sirius Satellite Radio in January 2006. Free FM was given its name to highlight that its stations broadcast free-to-air, instead of requiring a subscription fee like satellite radio services. Launched on October 25, 2005, Free FM was phased out over the course of 2007, with the final station using it, KLSX, dropping the brand in November 2008.
Free FM stations targeted a largely male demographic ranking from 18 to 49, attracting those who normally listen to FM rock and alternative stations, instead of existing AM talk radio listeners. Programs were more ribald than AM talk stations and include more discussion of dating, personal relationships, and pop culture, more comedy, and more discussion of celebrities and entertainment. Some Free FM stations also included music programs. Most Free FM programs were generally of the hot talk format.
One Canadian radio station, CFRI-FM in Grande Prairie, Alberta, also uses the Free FM brand name, although its ownership and format are unrelated to the American stations.
On October 25, 2005, Infinity Broadcasting (now CBS Radio) officially announced that it would be replacing Howard Stern on many of its radio stations with David Lee Roth in New York City and several other eastern markets, Rover's Morning Glory with Shane "Rover" French in the midwest, and Adam Carolla in Los Angeles and several other western markets, along with already established DC-based morning show The Junkies on WJFK-FM in D.C. and WHFS-FM in Baltimore. On the same day, several of these Infinity/CBS radio stations became known as "Free FM"; some of the stations already had an all-talk format, while others switched from a music format, and WXRK New York announced that it would become "Free FM" starting January 3, 2006. Jimmy Kimmel served as creative consultant for the format.