Canada
A number of different definitions of "network" are used by government agencies, industry, and the general public.
Under the Broadcasting Act, a network is defined as "any operation where control over all or any part of the programs or program schedules of one or more broadcasting undertakings is delegated to another undertaking or person" and must be licensed by the Canadian Radio-television and Telecommunications Commission (CRTC).
Only four national over-the-air television networks are currently licensed by the CRTC: the government-owned CBC (English) and Radio-Canada (French), French-language private network TVA, and a network focused on Canada's indigenous peoples, APTN. A third French-language service, V, is licensed as a provincial network within Quebec, but not nationally.
Currently, licensed national or provincial networks must be carried by all cable systems (in the country or province, respectively) with a service area above a certain population threshold, as well as all satellite providers. However, they are no longer necessarily expected to achieve over-the-air coverage in all areas (APTN, for example, only has terrestrial coverage in parts of northern Canada).
In addition to these licensed networks, the two main private English-language over-the-air services, CTV and Global, are also generally considered to be "networks" by virtue of their national coverage, although they are not officially licensed as such. CTV was previously a licensed network, but relinquished this licence in 2001 after acquiring most of its affiliates, making operating a network licence essentially redundant (per the above definition).
Smaller groups of stations with common branding are often categorized by industry watchers as television systems, although the public and the broadcasters themselves will often refer to them as "networks" regardless. Some of these systems, such as CTV Two, Citytv, and the now-defunct E!, essentially operate as mini-networks, but have reduced geographical coverage. Others, such as Omni or CTS, have similar branding and a common programming focus, but schedules may vary significantly from one station to the next.
Most local television stations in Canada are now owned and operated directly by their network, with only a very few affiliates still operating.
Read more about this topic: Television Network
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