Wikipedia
CKGM (branded as TSN Radio 690) is an English language Canadian radio station in Montreal. Formerly an affiliate of sports radio network The Team, it was one of three stations to retain the sports format after the network folded in 2002 until it switched to the TSN Radio branding as in October 2011. The station has an all-sports format since May 2001.
CKGM officially began broadcasting on 690 kHz, as a 50,000 watts clear-channel Class I-A station, on September 4, 2012. It changed its branding to TSN Radio 690, accordingly. Its nighttime signal covers most of the eastern half of North America, including three-fourths of Canada. Its transmitters are located near Mercier, while its studios are located on René Lévesque Boulevard East in Montreal.
CKGM is best known for having been a legendary and influential top 40 station in its heyday from 1970 to 1986.