From 1941 until 1999, AM 690 in Montreal was the home of CBF, the flagship station of the CBC's French-language radio network, now known as Ici Radio-Canada Première.

These shows mainly focus on Montreal Canadiens analysis, especially during hockey season, but also address all the major sports in North America.

Known in particular for featuring prominently on his show Francophones who were proud of being bilingual or of being assimilated to the Anglophone community (again, depending on the point of view), Burns would remain on the air until early 1969, resigning after a boycott campaign targeting the station's advertisers was launched.

Burns was sufficiently controversial to be publicly denounced by Quebec Premier Daniel Johnson Sr., and the station received several bomb threats during the late 1960s.

In 1975, CKGM introduced "La Connection Française", referring to a trio of bilingual personalities (Rob Christie, Marc Denis[6] and Scott Carpentier) which used both English and French on the air and played songs of both languages.

On-air bilingualism would remain a distinctive CKGM feature until stringent CRTC regulation forbidding it (and also enforcing quotas on the Francophone side) went into effect on January 1, 1980.

CKGM switched its format to gold-based adult contemporary under the "Lite Rock, Less Talk", and "Favourites of Yesterday and Today" monikers a few months later, on January 15, 1986.

Anecdotal evidence suggests that at least some listeners wondered if there was, in fact, a legal limitation on the number of songs radio stations can play.

[8] On September 14, 1990, at 5 p.m., CHTX moved to 990 kHz,[9] increasing its power to 50,000 watts full-time from a new transmitter site located in Ville Mercier, and converting itself to AM stereo.

The switch occurred one week later than initially scheduled, on orders from the federal Department of Communications, due to the "tense security situation" (the Oka Crisis) in the neighbouring Indian reserve of Kahnawake.

When the 1998 Ice Storm took place, CKGM continued to rely on automation, making few efforts to broadcast adapted emergency information.

After that station moved temporarily to 1410 kHz using the former facilities of CFMB, CKGM leased its signal to CJAD on a temporary basis, starting on January 25, 1998.

[15] Even in the very last days before the switch to the new format, the largely automated CKGM continued to air a promo criticizing "those talk stations" (in addition to always playing the same songs in the very same order).

Its morning show featured veteran broadcaster Elliot Price and Shaun Starr (Denis Casavant left in November 2011 to pursue his career at RDS).

On June 22, 2007, CTVglobemedia purchased CKGM and most of the other assets of CHUM Limited following approval by the Canadian Radio-television and Telecommunications Commission, while the Citytv stations were sold to Rogers Communications.

[16] The reasoning for the swap was to take advantage of 690's around-the-clock clear-channel frequency, especially during nighttime hours when most sporting events, especially hockey, takes place; at 990, the station was forced to broadcast at a lower power at night, broadcasting directionally towards the north to protect CBW and CBY, significantly decreasing its coverage area in the suburban areas and on the South Shore.

Sometime after this simulcast period had ended, the 990 frequency was transferred to Evanov Communications, who planned to launch its new LGBT-oriented station, CHRF ("Radio Fierté"), at 990 in early 2013.

Bell also stated that the proposed format would supplant CKAC's recent switch from sports talk to traffic radio in 2011.

[28] Prior to hearings in May 2013 regarding a modified proposal to acquire Astral Media, 15,000 listeners signed a petition issued by Bell in support of allowing the company to keep the station.

Bell asserted that the CRTC could force CKGM to be sold or shut down if the company was not granted an exemption to the ownership cap.

[32] After 45 years in the same building, CKGM relocated in September 2013 its studios to 1717 René-Lévesque Boulevard East to join the rest of the Bell Media cluster in Montreal.