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Television Networks
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. Until the mid-1980s, television programming in most countries of the world was dominated by a small number of terrestrial networks. Many early television networks (such as NBC, the ABC, or the BBC) evolved from earlier radio networks. Overview In countries where most networks broadcast identical, centrally originated content to all of their stations and where most individual television transmitters therefore operate only as large " repeater stations", the terms "television network", "television channel" (a numeric identifier or radio frequency) and "television station" have become mostly interchangeable in everyday language, with professionals in television-related occupations continuing to make a differentiation between them. Within the industry, a ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications Network
A telecommunications network is a group of nodes interconnected by telecommunications links that are used to exchange messages between the nodes. The links may use a variety of technologies based on the methodologies of circuit switching, message switching, or packet switching, to pass messages and signals. Multiple nodes may cooperate to pass the message from an originating node to the destination node, via multiple network hops. For this routing function, each node in the network is assigned a network address for identification and locating it on the network. The collection of addresses in the network is called the address space of the network. Examples of telecommunications networks include computer networks, the Internet, the public switched telephone network (PSTN), the global Telex network, the aeronautical ACARS network, and the wireless radio networks of cell phone telecommunication providers. Network structure In general, every telecommunications network conceptually ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable Channel
Cable television is a system of delivering television programming to consumers via radio frequency (RF) signals transmitted through coaxial cables, or in more recent systems, light pulses through fibre-optic cables. This contrasts with broadcast television (also known as terrestrial television), in which the television signal is transmitted over-the-air by radio waves and received by a television antenna attached to the television; or satellite television, in which the television signal is transmitted over-the-air by radio waves from a communications satellite orbiting the Earth, and received by a satellite dish antenna on the roof. FM radio programming, high-speed Internet, telephone services, and similar non-television services may also be provided through these cables. Analog television was standard in the 20th century, but since the 2000s, cable systems have been upgraded to digital cable operation. A "cable channel" (sometimes known as a "cable network") is a television ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Server
{{refimprove, date=September 2014 A video server is a computer-based device that is dedicated to delivering video. Video servers are used in a number of applications, and often have additional functions and capabilities that address the needs of particular applications. For example, video servers used in security, surveillance and inspection applications typically are designed to capture video from one or more cameras and deliver the video via a computer network. In video production and broadcast applications, a video server may have the ability to record and play recorded video, and to deliver many video streams simultaneously. Video broadcast and production In TV broadcast industries, a server is a device used to store broadcast quality images and allows several users to edit stories using the images they contain simultaneously. The video server can be used in a number of contexts, some of which include: * News: providing short news video clips as part of a news broadcast as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broadcast Automation
Broadcast automation incorporates the use of broadcast programming technology to automate broadcasting operations. Used either at a broadcast network, radio station or a television station, it can run a facility in the absence of a human operator. They can also run in a ''live assist'' mode when there are on-air personnel present at the master control, television studio or control room. The radio transmitter end of the airchain is handled by a separate automatic transmission system (ATS). History Originally, in the US, many (if not most) broadcast licensing authorities required a licensed board operator to run every station at all times, meaning that every DJ had to pass an exam to obtain a license to be on-air, if their duties also required them to ensure proper operation of the transmitter. This was often the case on overnight and weekend shifts when there was no broadcast engineer present, and all of the time for small stations with only a contract engineer on call. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Operations Center
A network operations center (NOC, pronounced like the word ''knock''), also known as a "network management center", is one or more locations from which network monitoring and control, or network management, is exercised over a computer, telecommunication or satellite network. __TOC__ History The earliest NOCs started during the 1960s. A Network Control Center was opened in New York by AT&T in 1962 which used status boards to display switch and routing information, in real-time, from AT&T's most important toll switches. AT&T later replaced this Network Control Center with a modernized NOC in 1977, located in Bedminster, New Jersey. Purpose NOCs are implemented by business organizations, public utilities, universities, and government agencies that oversee complex networking environments that require high availability. NOC personnel are responsible for monitoring one or many networks for certain conditions that may require special attention to avoid degraded service. Organization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noncommercial Educational
A non-commercial educational station (NCE station) is a radio station or television station that does not accept on-air advertisements (TV ads or radio ads), as defined in the United States by the Federal Communications Commission (FCC) and was originally intended to offer educational programming as part, or whole, of its programming. NCE stations do not pay broadcast license fees for their non-profit uses of the radio spectrum. Stations which are almost always operated as NCE include public broadcasting, community radio, and college radio, as well as many religious broadcasting stations. Nearly all Non-Commercial radio stations derive their support from listener support, grants and endowments, such as the governmental entitCorporation for Public Broadcasting(CPB) that distributes supporting funds provided by the congress to support Public Radio. Reserved channels On the FM broadcast band, the Federal Communications Commission (FCC) has reserved the lowest 20 channels, 201~220 ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regional Variation
In geography, regions, otherwise referred to as zones, lands or territories, are areas that are broadly divided by physical characteristics (physical geography), human impact characteristics (human geography), and the interaction of humanity and the environment (environmental geography). Geographic regions and sub-regions are mostly described by their imprecisely defined, and sometimes transitory boundaries, except in human geography, where jurisdiction areas such as national borders are defined in law. Apart from the global continental regions, there are also hydrospheric and atmospheric regions that cover the oceans, and discrete climates above the land and water masses of the planet. The land and water global regions are divided into subregions geographically bounded by large geological features that influence large-scale ecologies, such as plains and features. As a way of describing spatial areas, the concept of regions is important and widely used among the many branches of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emergency Alert
An emergency communication system (ECS) is any system (typically computer-based) that is organized for the primary purpose of supporting one-way and two-way communication of emergency information between both individuals and groups of individuals. These systems are commonly designed to convey information over multiple types of devices, from signal lights to text messaging to live, streaming video, forming a unified communication system intended to optimize communications during emergencies. Contrary to emergency notification systems, which generally deliver emergency information in one direction, emergency communication systems are typically capable of both initiating and receiving information between multiple parties. These systems are often made up of both input devices, sensors, and output/communication devices. Therefore, the origination of information can occur from a variety of sources and locations, from which the system will disseminate that information to one or more target ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Station Identification
Station identification (ident, network ID or channel ID or bumper) is the practice of radio and television stations and broadcast network, networks identifying themselves on-air, typically by means of a call sign or brand name (sometimes known, particularly in the United States, as a "sounder" or "stinger", more generally as a station or network ID). This may be to satisfy requirements of licensing authorities, a form of branding, or a combination of both. As such, it is closely related to production logos, used in television and cinema alike. Station identification used to be done regularly by an announcer at the halfway point during the presentation of a television program, or in between programs. Asia Idents are known as a ''montage'' in Thailand and the Malay world (except Indonesia), and as an ''interlude'' in Cambodia and Vietnam. Philippines Station identifications in the Philippines differ from the vernacular meaning in most of the world. They describe what would be r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Local Insertion
In broadcasting, local insertion (known in the United Kingdom as an opt-out) is the act or capability of a broadcast television station, radio station or cable system to insert or replace part of a network feed with content unique to the local station or system. Most often this is a station identification (required by the broadcasting authority such as the U.S. Federal Communications Commission), but is also commonly used for television or radio advertisements, or a weather or traffic report. A digital on-screen graphic ("dog" or "bug"), commonly a translucent watermark, may also be keyed (superimposed) with a television station ID over the network feed using a character generator using genlock. In cases where individual broadcast stations carry programs separate from those shown on the main network, this is known as regional variation (in the United Kingdom) or an opt-out (in Canada and the United States). Automated local insertion used to be triggered with in-band signaling, suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TriStar Television
TriStar Television, Inc. (first spelled Tri-Star, and abbreviated as TT) is an American television production studio that is a division of Sony Entertainment's Sony Pictures Television. TriStar Television was launched in March 1986 by TriStar Pictures, and remained a joint-venture between Columbia Pictures, CBS, and HBO until it was acquired by Sony Pictures Entertainment, the parent of both Columbia and TriStar. After a purchase by Sony Pictures Entertainment, both companies Columbia Pictures Television and TriStar Television merged and formed Columbia TriStar Television on February 21, 1994. The television studio was relaunched twice and is currently a specialty label for Sony Pictures Television. The entity was originally a sister company of Columbia Pictures Television which was shut down in 2001. History It was formed when Tri-Star Pictures joined forces with Stephen J. Cannell Productions and Witt/Thomas Productions and created a television distribution company called Tel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sony Pictures Television
Sony Pictures Television Inc. (abbreviated as SPT) is an American television production and distribution studio. Based at the Sony Pictures Studios complex in Culver City, it is a division of Sony Entertainment's unit Sony Pictures Entertainment and a subsidiary of the Japanese conglomerate Sony Group Corporation. History SPT's history goes back to 1947, when Pioneer Telefilms was founded by Ralph Cohn, whose father Jack and uncle Harry co-founded Columbia Pictures. Pioneer was bought by Columbia and renamed Screen Gems in November 1948, reincorporated as Columbia Pictures Television on May 6, 1974, and merged with sister studio TriStar Television (formed in 1986 and relaunched in 1991) to form Columbia TriStar Television on February 21, 1994. On September 16, 2002, Sony Pictures Entertainment renamed the American studio as Sony Pictures Television and its international division as Sony Pictures Television International (SPTI)). In summer 2007, SPT introduced The Minisod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
