Most BBS stations maintained primary affiliation with one of Canada's major networks. Although BBS stations shared some programming as a distinct station group, BBS was only a supplementary affiliation, not a separate television network. Most BBS stations were primary affiliates of CTV. However, some BBS stations were private affiliates of the CBC, either as twinstick operations with CTV stations in the same markets (eg. MCTV), or in communities where the CBC station was the sole station in the market (eg. CKNX). Several stations, such as CFPL, were also otherwise independent.
BBS was folded in 1997, when Baton Broadcasting became the sole corporate owner of CTV. The network's CBC affiliates and independents were all sold either to CHUM Limited, becoming NewNet stations, or to the CBC itself, becoming repeaters of other stations. CTV no longer owns any stations that are affiliated with other Canadian networks.
The CBC is the oldest currently-operating broadcasting service in the country, first established in its present form on November 2, 1936.
The CBC's predecessor, the Canadian Radio Broadcasting Commission, was established in 1932 by the government of R.B. Bennett after an intense lobbying campaign by Graham Spry and Alan Plaunt of the Canadian Radio League which had been set up in 1930 to campaign for the implementation of recommendations by the Aird Commission on public broadcasting.
Some stations that broadcast from smaller cities are private affiliates of the CBC, that is, stations which are owned by commercial broadcasters and air a predominantly CBC schedule.