The story
The Radiomédia network was created to succeed to the now-defunct Télémédia and Radiomutuel networks, which merged on September 30, 1994. This merger resulted in six AM stations closing in Quebec on that very same day at 6 p.m. (Eastern Daylight Time), and is referred to in Quebec radio circles as "le vendredi noir" ("Black Friday").
The six AM stations closed were:
CJMS 1280 AM in Montreal (Radiomutuel)
CJRP 1060 AM in Quebec City (Radiomutuel)
CKCH 970 AM in Gatineau (Télémédia)
CJRS 1510 AM in Sherbrooke (Radiomutuel)
CJTR 1140 AM in Trois-Rivières (Radiomutuel)
CJMT 1420 AM in Chicoutimi (Télémédia)
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In each case, the station with the best signal remained open and the other one was closed. While in most markets the station that remained open was also both the oldest and the more successful according to recent BBM ratings, this was not the case everywhere—CJTR in Trois-Rivières had recently surpassed CHLN in ratings for the first time in many years, and CKCH in Gatineau (opened in 1933) had much more of a history than CJRC, which opened only in 1968.
The Radiomédia network, along with CKAC in Montreal and CHRC in Quebec City, were now owned in equal shares by Telemedia and Radiomutuel. Telemedia retained full ownership of CHLT in Sherbrooke and CHLN in Trois-Rivières, while Radiomutuel retained full ownership of CJRC in Gatineau and CKRS in Saguenay. Both companies continued to compete against each other on the FM dial, with Telemedia still owning the RockDétente network and Radiomutuel owning the Énergie network, this while both FM networks were now getting their news services from the Radiomédia newsrooms.
From Wikipedia’s article on Corus Québec, shared under CC BY-SA 4.0.3