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Encyclopedia > Television channel

The term television channel generally refers to either a television station or its cable/satellite counterpart (both outlined below). Sometimes, it is confused with the term television network, which (when properly utilized) describes a group of geographically-distributed television stations that share affiliation/ownership and some or all of their programming with one another. A television station is a type of broadcast station that broadcasts both audio and video to television receivers in a particular area. ... Coaxial cable is often used to transmit cable television into the house. ... Artists impression of a Boeing 601 satellite, as configured for digital television transmission by SES Astra Satellite television is television delivered by way of communications satellites, as compared to conventional terrestrial television and cable television. ... A television network is a distribution network for television content whereby a central operation provides programming for many television stations. ... This article needs cleanup. ...


The term may also refer to a physical or virtual location over which a television channel (in the above sense) is distributed. For example, in North America, "channel 2" refers to the broadcast band of 54 to 60 MHz, with carrier frequencies of 55.25 MHz for NTSC analog video (VSB) and 59.75 MHz for analog audio (FM), or 55.31 MHz for ATSC digital (8VSB). Channels may be shared by many different television stations or cable-distributed channels depending on the location and service provider. World map showing North America A satellite composite image of North America. ... A megahertz (MHz) is one million (106) hertz, a measure of frequency. ... A carrier wave, or carrier is a waveform (usually sinusoidal) that is modulated (modified) to represent the information to be transmitted. ... Sine waves of various frequencies; the lower waves have higher frequencies than those above. ... NTSC is the analog television system in use in Canada, Japan, South Korea, the Philippines, the United States, and some other countries, mostly in the Americas (see map). ... Wikipedia does not yet have an article with this exact name. ... The abbreviations FM, Fm, and fm may refer to: Electrical engineering Frequency modulation (FM) and its most common applications: FM broadcasting, used primarily to broadcast music and speech at VHF frequencies FM synthesis, a sound-generation technique popularized by early digital synthesizers Science Femtometre (fm), an SI measure of length... The Advanced Television Systems Committee (ATSC) is the group that helped to develop the new digital television standard for the United States, also adopted by Canada, Mexico, and South Korea and being considered by other countries. ... 8VSB is the 8-level vestigial sideband modulation method adopted for terrestrial broadcast of the ATSC digital television standard in the United States and Canada. ...


This terminology may be muddled somewhat in other jurisdictions, for instance Europe, where terrestrial channels are commonly mapped from physical channels to common numerical positions (i.e. BBC One does not broadcast on any particular "channel 1" but is nonetheless mapped to the "1" input on most British television sets). On digital platforms, such (location) channels are usually arbitrary, due to virtual channels. In law, jurisdiction (from the Latin jus, juris meaning law and dicere meaning to speak) is the practical authority granted to a formally constituted legal body or to a political leader to deal with and make pronouncements on legal matters and, by implication, to administer justice within a defined area... World map showing Europe A satellite composite image of Europe Europe is one of the six inhabited continents of the Earth. ... BBC One (or BBC1 as it was formerly styled) is the primary channel of the British Broadcasting Corporation. ... As of 2005, analogue transmissions are still the most used method of receiving television in the United Kingdom. ... In telecommunications, a virtual channel is a channel designation which differs from the actual radio channel or frequency which the signal travels. ...


Television station

Main article: television station

A television station is a type of broadcast station that broadcasts both audio and video to television receivers in a particular area. Traditionally, TV stations made their broadcasts by sending specially encoded radio signals over the air, called terrestrial television. Individual television stations are usually granted licenses by a government agency to use a particular section of the radio spectrum (a channel) through which they send their signals. Some stations use LPTV broadcast translators to retransmit to further areas. A television station is a type of broadcast station that broadcasts both audio and video to television receivers in a particular area. ... A broadcast station may be: a radio station a television station It does not include television networks or radio networks. ... Broadcasting is the distribution of audio and/or video signals (programs) to a number of recipients (listeners or viewers) that belong to a large group. ... Sound is a disturbance of mechanical energy that propagates through matter as a wave. ... Video is the technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images which represent scenes in motion. ... In radio terminology, a receiver is an electronic circuit that receives a radio signal from an antenna and decodes the signal for use as sound, pictures, navigational-position information, etc. ... Terrestrial television (also known as over-the-air, OTA or broadcast television) was the traditional method of television broadcast signal delivery prior to the advent of cable and satellite television. ... It has been suggested that Licensing (strategic alliance) be merged into this article or section. ... An agency is a department of a local or national government responsible for the oversight and administration of a specific function, such as a customs agency or a space agency. ... Radio frequency, or RF, refers to that portion of the electromagnetic spectrum in which electromagnetic waves can be generated by alternating current fed to an antenna. ... Channel, in communications (sometimes called communications channel), refers to the medium used to convey information from a sender (or transmitter) to a receiver. ... Low-power broadcasting is the concept of broadcasting at very low power and low cost, to a small community area. ... In broadcasting, a translator is an FM radio station or a TV station which acts as a full-duplex repeater. ... An Icom Radio Repeater. ...


Television stations are now in the process of converting from analogue (NTSC, PAL, or SECAM) to digital TV (ATSC, DVB, or ISDB). Religious conversion is the adoption of new religious beliefs that differ from the converts previous beliefs; in some cultures (e. ... An analog or analogue signal is any continuously variable signal. ... NTSC is the analog television system in use in Canada, Japan, South Korea, the Philippines, the United States, and some other countries, mostly in the Americas (see map). ... PAL, short for phase-alternating line, phase alternation by line or phase alternation line, is a colour encoding system used in broadcast television systems in large parts of the world. ... SÉCAM (Séquentiel couleur à mémoire, French for sequential colour with memory) is an analog color television system first used in France. ... Digital television (DTV) uses digital modulation and compression to broadcast video, audio and data signals to television sets. ... The Advanced Television Systems Committee (ATSC) is the group that helped to develop the new digital television standard for the United States, also adopted by Canada, Mexico, and South Korea and being considered by other countries. ... Official DVB logo, found on compliant devices DVB, short for Digital Video Broadcasting, is a suite of internationally accepted, open standards for digital television maintained by the DVB Project, an industry consortium with more than 270 members, and published by a Joint Technical Committee (JTC) of European Telecommunications Standards Institute... A picture of ISDB-T (taken during a tour of the NHK Osaka broadcasting station) Integrated Services Digital Broadcasting (ISDB) is the digital television (DTV) and digital audio broadcasting (DAB) format that Japan has created to allow radio and television stations there to convert to digital. ...


With the development of internet, there are many television channels are available on internet. One example of directory for internet television channels is yourglobaltv


Non-broadcast television channels

Because some regions have had difficulty picking up over-the-air signals (particularly in mountainous areas), alternative means of distribution such as direct-to-home satellite and cable television have been introduced. Television channels specifically built to run on cable or satellite blur the line between TV station and TV network. That fact led some early cable channels to call themselves superstations. Terrestrial television (also known as over-the-air or OTA) is the traditional method of television broadcast signal delivery, by radio waves transmitted through open space. ... A mountain is a landform that extends above the surrounding terrain in a limited area. ... Superstation in United States television can have several meanings. ...


Satellite and cable have created changes. Broadcast TV stations in an area can sign up to be carried on cable (called "must-carry" in the U.S.), but content providers like TLC cannot. They are not licensed to run broadcast equipment like a station, and they do not regularly provide content to licensed broadcasters either. Furthermore, a distributor like TNT may begin producing its own programming, and shows presented exclusively on cable/satellite by one distributor may be syndicated to broadcast stations. The cost of creating a nationwide channel has been reduced and there has been a huge increase in the number of such channels, with most catering to a small group. In the United States, must-carry is a regulation by the FCC requiring that cable TV systems must carry all locally-licensed television stations. ... TLC Network is a cable TV network in the US that carries a variety of informational and reality-based programming. ... Turner Network Television, usually referred to as TNT, is a cable TV network created by media mogul Ted Turner and launched with a showing of his favorite film, Gone with the Wind, on October 3, 1988. ... In the television industry (as in radio), syndication is the sale of the right to broadcast programs to multiple stations, without going through a broadcast network. ...


From the definitions above, use of the terms "network" or "station" in reference to nationwide cable/satellite channels is technically inaccurate. However, this is an arbitrary, inconsequential distinction, and varies from company to company. Indeed, the term "cable network" has entered into common usage in the United States in reference to such channels. There is even some geographical separation among "national" cable/satellite channels in the U.S., be it programming (i.e. the Fox Sports Net group of regional sports channels, which share several programs), or simply regionalized advertising inserted by the local cable company. A television network is a distribution network for television content whereby a central operation provides programming for many television stations. ... Fox Sports Net headquarters in Los Angeles. ...


Should a legal distinction be necessary between a (location) channel as defined above and a television channel in this sense, the terms "programming service" (e.g. [1]) or "programming undertaking" (e.g. [2]) may be used instead for the latter definition.


A person viewing by cable or satellite might not know what kind of organization is responsible for a given program, especially if it is syndicated, so what seems to be a station or a network may be neither.


See also


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