It is owned and operated by the Canadian Broadcasting Corporation alongside Ici Radio-Canada Télé flagship CBFT-DT (channel 2).

The two stations share studios at Maison Radio-Canada on René Lévesque Boulevard East in Downtown Montreal; CBMT-DT's transmitter is located atop Mount Royal.

The CBC decided that it was imperative to stop time-sharing in English and in French, so CBMT was included in the network's expansion plans for television; upon its sign-on, CBMT became the exclusive English-language CBC station for Montreal; CBFT, simultaneous to this, became an exclusive French-language station.

Due to several cutbacks over the years, master control for the station is now based at the Canadian Broadcasting Centre in Toronto.

CBMT once operated over 50 analogue rebroadcasters throughout the province of Quebec and in three communities in northern Manitoba: Brochet, Poplar River, and Shamattawa.

The CBC had rebroadcasters of CBMT in the following mandatory markets: On August 16, 2011, the Canadian Radio-television and Telecommunications Commission (CRTC) granted the CBC permission to continue operating 22 repeaters in mandatory markets, including the above, in analogue until August 31, 2012, by which time the transmitters had to be converted to digital or shut down.