A couple of years ago, CBC moved their AM stations in Montreal and Toronto (and perhaps elsewhere) to the FM band. They now call the old AM network CBC Radio-1. The FM network is CBC Radio-2. The Montreal frequency is 88.5. If you search on the CBC website , you should be able to find the one for Toronto.

I don't know about Toronto, but the move in Montreal was a stupid mistake. The reception was much better on AM. In fact, the reception for CKUT, at 90.3, is much better than for the CBC at 88.5.

Mike Regenstreif