CHUM-FM is a Canadian radio station in Toronto, Ontario, broadcasting on 104.5 MHz. Owned by Bell Media, the station airs a hot adult contemporary format. CHUM-FM's studios are located at 250 Richmond Street West in the Entertainment District, while its transmitter is located atop the CN Tower. The station is simulcast on Shaw Direct channel 872, and on Bell Satellite TV channel 990. CHUM-FM is consistently one of Toronto's most popular stations according to Numeris' radio ratings. History CHUM-FM started broadcasting on September 1, 1963 with an ERP of 18,000 watts and a transmitter and studio at 1331 Yonge Street. It aired a classical music format, the first station in Canada to do so. On March 21, 1966, their ERP was increased to 54,000 watts. In 1968, CHUM-FM received approval for a change in its transmitter location and increase in power to 100,000 watts. The transmitter was to be moved to the top of the Manufacturer's Life Building at 250 Bloor Street East. At Midnight on July 1, 1968, CHUM-FM changed formats to progressive rock, a forerunner to the present-day adult album alternative format, by playing a wide range of music ranging from world and jazz to classical and folk. The station also aired public affairs programming, such as In Toronto. The station featured many famous Canadian radio personalities such as Larry Green, Walter Michaels, Steve Harris, Pete and Geets, Larry Wilson, David Marsden, David Pritchard and actor Rick Moranis. On December 14, 1973, the station was authorized, along with other Toronto FM and TV stations, to move their transmitter to the top of the CN Tower. The new transmitter was turned on on May 31, 1976 with a reduced ERP of 40,000 watts. In 1978, CHUM-FM created a Top 30 Album Chart to complement sister station CHUM's Singles Chart. A television version of the countdown was later broadcast on Citytv, featuring music videos for most of the songs in the countdown; the TV version was discontinued in January 2008, following Rogers Communications' acquisition of Citytv. In June 1984, the station started evolving towards adult contemporary, with the shift completed by that September, though the station would retain a rock lean through the remainder of the decade. Longtime morning show host Roger Ashby would join the station from CHUM-AM on September 2, 1985, and would be paired with Rick Hodge (who had been doing sports updates on the FM's morning