CHUM-FM is a Canadian hot adult contemporary radio station that broadcasts at 104.5 MHz in Toronto, Ontario. This station started broadcasting on September 1, 1963 and it was the first Canadian station to have a classical music format. On 1968 the station changed its format to progressive rock and it played a wide range of music ranging from world music and jazz to classical and folk. In 1990 CHUM-FM changed its format to hot adult contemporary. CHUM-FM is currently owned by Bell Media and continues to broadcast with 40,000 watts.