CHUM is a Canadian AM radio station in Toronto, Ontario. The station is owned and operated by Bell Media. CHUM's studios are co-located with TSN at 9 Channel Nine Court in the Agincourt neighbourhood of Scarborough, with its transmitter array located in the Clarkson neighbourhood of Mississauga. TSN 1050 is simulcast on Bell Satellite TV channel 989, and on Shaw Direct channel 867. The station is also carried on the 3rd HD digital subchannel of CKFM-FM.