The DuMont Television Network in 1949. DuMont's network of stations stretched from Boston to St. Louis. These stations were linked together via AT&T's coaxial cable feed, allowing the network to broadcast live television programming to all the stations at the same time. Stations not yet connected received kinescope recordings via physical delivery.
Cerro de Punta, Puerto Rico's highest peak, and its TV transmission towers

A television network or television broadcaster is a telecommunications network for distribution of television program content, where a central operation provides programming to many television stations or pay television providers.

- Television broadcasting

In the broadcasting industry (particularly in North America), a network affiliate or affiliated station is a local broadcaster, owned by a company other than the owner of the network, which carries some or all of the lineup of television programs or radio programs of a television or radio network.

- Network affiliate

This distinguishes such a television or radio station from an owned-and-operated station (O&O), which is owned by the parent network.

- Network affiliate

Within the industry, a tiering is sometimes created among groups of networks based on whether their programming is simultaneously originated from a central point, and whether the network master control has the technical and administrative capability to take over the programming of their affiliates in real-time when it deems this necessary – the most common example being during national breaking news events.

- Television broadcasting

A group of television stations with common ownership or affiliation are known as a TV network and an individual station within the network is referred to as O&O or affiliate, respectively.

- Television station
The DuMont Television Network in 1949. DuMont's network of stations stretched from Boston to St. Louis. These stations were linked together via AT&T's coaxial cable feed, allowing the network to broadcast live television programming to all the stations at the same time. Stations not yet connected received kinescope recordings via physical delivery.

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A live television show set and cameras

Television show

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Any content produced for viewing on a television set which can be broadcast via over-the-air, satellite, or cable, excluding breaking news, advertisements, or trailers that are typically placed between shows.

Any content produced for viewing on a television set which can be broadcast via over-the-air, satellite, or cable, excluding breaking news, advertisements, or trailers that are typically placed between shows.

A live television show set and cameras
Tamvisio's camera operators film a television program at Frenckell's studio on January 2, 1965, in Tampere, Finland.
Arthur Schlesinger Jr.

Then they often "pitch" it to the various networks in an attempt to find one interested enough to order a prototype first episode of the series, known as a pilot. Eric Coleman, an animation executive at Disney, told an interviewer, "One misconception is that it's very difficult to get in and pitch your show, when the truth is that development executives at networks want very much to hear ideas. They want very much to get the word out on what types of shows they're looking for."

After production, the show is handed over to the television network, which sends it out to its affiliate stations, which broadcast it in the specified broadcast programming time slot.