The format switch to all-sports was announced on March 1, 2007, and took effect on April 2, 2007. Sister station CHMP-FM became the co-flagship of the Corus Québec network. The long-time tradition of airing news bulletins on the 45th minute of the hour, a practice that was begun in 1972, was ended. Music programming also disappeared from the station's schedule for the first time ever, except for late-night "Souvenirs Garantis" oldies programming. Before April 2, 2007, the station had a news/talk format with sports talk in the evenings and some music (mostly oldies) during weekends.