Television channel in the context of "Bandwidth (signal processing)"

MTV (originally an initialism of Music Television) is an American cable television channel and the flagship property of the MTV Entertainment Group, a sub-division of the Paramount Media Networks division of Paramount Skydance. Launched on August 1, 1981, the channel originally aired music videos and related music entertainment programming guided by television personalities known as video jockeys (VJs). MTV soon began establishing its presence overseas, eventually gaining an unprecedented cult following and becoming one of the major factors in cable programming's rise to fame, leading American corporations to dominate the television economy in the 1990s.

In the years since its inception, the channel significantly toned down its focus on music in favor of original reality programming for teenagers and young adults. As of November 2023, MTV is available to approximately 67 million pay television households in the United States, down from its 2011 peak of 99 million households.

Terrestrial television, or over-the-air television (OTA) is a type of television broadcasting in which the content is transmitted via radio waves from the terrestrial (Earth-based) transmitter of a TV station to a TV receiver having an antenna. The term terrestrial is more common in Europe and Latin America, while in Canada and the United States it is called over-the-air or simply broadcast. This type of TV broadcast is distinguished from newer technologies, such as satellite television (direct broadcast satellite or DBS television), in which the signal is transmitted to the receiver from an overhead satellite; cable television, in which the signal is carried to the receiver through a cable; and Internet Protocol television, in which the signal is received over an Internet stream or on a network utilizing the Internet Protocol. Terrestrial television stations broadcast on television channels with frequencies between about 52 and 600 MHz in the VHF and UHF bands. Since radio waves in these bands travel by line of sight, reception is generally limited by the visual horizon to distances of 64–97 kilometres (40–60 miles), although under better conditions and with tropospheric ducting, signals can sometimes be received hundreds of kilometers distant.

Terrestrial television was the first technology used for television broadcasting. The BBC began broadcasting in 1929 and by 1930 many radio stations had a regular schedule of experimental television programmes. However, these early experimental systems had insufficient picture quality to attract the public, due to their mechanical scan technology, and television did not become widespread until after World War II with the advent of electronic scan television technology. The television broadcasting business followed the model of radio networks, with local television stations in cities and towns affiliated with television networks, either commercial (in the US) or government-controlled (in Europe), which provided content. Television broadcasts were in greyscale (called black and white) until the transition to color television in the 1960s.

TV listings (television listings, also sometimes called a TV guide or program/programme guide) are a printed or electronic timetable of television programs. Often intended for consumer use, these provide information concerning programming scheduled to be broadcast on various television channels available to the reader – either via terrestrial, free-to-air, cable, satellite or over-the-top MVPD – indicating at what time and on what channel they are due to be broadcast over a period usually encompassing about seven- to 14-days in advance.

Hearst Corporation, Hearst Holdings Inc. and Hearst Communications Inc. comprise an American multinational mass media and business information conglomerate owned by the Hearst family and based in Hearst Tower in Midtown Manhattan in New York City.

Hearst owns newspapers, magazines, television channels, and television stations, including the Albany Times-Union, Houston Chronicle, San Francisco Chronicle, Cosmopolitan and Esquire. It owns 50 percent of the A&E Global Media cable network group and 20 percent of the Walt Disney Company's sports division ESPN Inc.. The conglomerate also owns Fitch Group and First Databank.

Paramount Media Networks is the division of Paramount Skydance Corporation that oversees the operations of its television channels and online brands. The division was originally founded as MTV Networks in 1984, named after MTV. It would be known under this name until 2011; when it would be thereafter known as Viacom Media Networks until 2019; and ViacomCBS Domestic Media Networks until 2022.

The division's television assets are managed through four units: MTV Entertainment Group, Showtime Networks, BET Media Group, and Nickelodeon Group. Paramount's international/foreign assets are overseen by Paramount International Networks.

Channel 4 is a British free-to-air public broadcast television channel owned and operated by Channel Four Television Corporation. It is publicly owned but, unlike the BBC, it receives no public funding and is funded entirely by its commercial activities, including advertising. It began its transmission in 1982 and was established to provide a fourth television service in the United Kingdom. At the time, the only other channels were the licence-funded BBC1 and BBC2, and a single commercial broadcasting network, ITV.

Originally a subsidiary of the Independent Broadcasting Authority (IBA), the station is now owned and operated by Channel Four Television Corporation, a public corporation of the Department for Culture, Media and Sport, which was established in 1990 and came into operation in 1993. Until 2010, Channel 4 did not broadcast in Wales, but many of its programmes were re-broadcast there by the Welsh fourth channel S4C. In 2010, Channel 4 extended service into Wales and became a nationwide television channel. The network's headquarters are in London and Leeds, with creative hubs in Manchester, Glasgow and Bristol.

5 (formerly known as Channel 5 and Five) is a British free-to-air public broadcast television channel owned and operated by Channel 5 Broadcasting Limited, a wholly owned subsidiary of Paramount Skydance's UK and Australia division. It was launched on 30 March 1997 to provide a fifth national terrestrial channel in the United Kingdom.

Channel 5 was renamed Five, from 16 September 2002 until 13 February 2011. Most of this was under the RTL Group's ownership with Richard Desmond purchasing the channel on 23 July 2010 and reverting the name change. On 1 May 2014, the channel was acquired by Viacom (now Paramount Global) for £450 million (US$759 million). Channel 5 was rebranded as 5 on 12 March 2025 along with its streaming service.

BBC One is a British free-to-air public broadcast television channel owned and operated by the BBC. It is the corporation's oldest and flagship channel, and is known for broadcasting mainstream programming, which includes BBC News television bulletins, primetime drama and entertainment, and live BBC Sport events.

The channel was launched on 2 November 1936 under the name BBC Television Service, which was the world's first regular television service with a high level of image resolution. It was renamed BBC TV in 1960 and used this name until the launch of the second BBC channel, BBC Two, in 1964. The main channel then became known as BBC1. The channel adopted the current spelling of BBC One in 1997.

ITV1 (formerly known as ITV) is a British free-to-air public broadcast television channel owned and operated by ITV plc. It provides the Channel 3 public broadcast service across all of the United Kingdom except for central and northern Scotland where STV provides the service.

ITV1 as a consistent national channel (with dedicated slots for regional news and other regional programmes) evolved out of the old ITV network – a federation of separately owned regional companies which had significantly different local schedules and branding. During the 1990s, the differences between the schedules in each region gradually reduced – partly through the consolidation of ownership and partly through the standardisation in the volume and scheduling of regional programmes.