CHUM Limited Is a media company based in
Toronto,
Ontario,
Canada, from 1945 to 2007. Immediately prior to its acquisition, it held full or joint control of two Canadian television systems —
Citytv and
A-Channel (formerly
NewNet, now
CTV Two) — comprising 11 local stations, and one
CBC Television (Canadian Broadcasting Corporation) affiliate, one provincial educational channel, and 20 branded
specialty television channels, most notably
MuchMusic and its various spinoffs. In addition, CHUM controlled 33
radio stations across Canada. At various points in its history, CHUM owned other radio stations and
ATV/
Atlantic Satellite Network in
Atlantic Canada.