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Television (TV), sometimes abbreviated to tele or telly, is a telecommunication medium used for transmitting upsetting images in monochrome (black and white), or in color, and in two or three dimensions and sound. The term can direct to a television set, a television show, or the medium of television transmission. Television is a addition medium for advertising, entertainment, news, and sports.

Television became open in crude experimental forms in the tardy 1920s, but it would still be several years previously the extra technology would be marketed to consumers. After World battle II, an bigger form of black-and-white TV broadcasting became well-liked in the united Kingdom and allied States, and television sets became commonplace in homes, businesses, and institutions. During the 1950s, television was the primary medium for influencing public opinion. In the mid-1960s, color broadcasting was introduced in the US and most supplementary developed countries. The availability of combination types of archival storage media such as Betamax and VHS tapes, high-capacity hard disk drives, DVDs, flash drives, high-definition Blu-ray Discs, and cloud digital video recorders has enabled viewers to watch pre-recorded materialsuch as moviesat home on their own grow old schedule. For many reasons, especially the openness of superior retrieval, the storage of television and video programming now occurs on the cloud (such as the video on request promote by Netflix). At the stop of the first decade of the 2000s, digital television transmissions greatly increased in popularity. another proceed was the touch from standard-definition television (SDTV) (576i, considering 576 interlaced lines of resolution and 480i) to high-definition television (HDTV), which provides a firm that is substantially higher. HDTV may be transmitted in various formats: 1080p, 1080i and 720p. previously 2010, similar to the invention of smart television, Internet television has increased the availability of television programs and movies via the Internet through streaming video services such as Netflix, Amazon Video, iPlayer and Hulu.

In 2013, 79% of the world's households owned a television set. The replacement of in advance bulky, high-voltage cathode ray tube (CRT) screen displays past compact, energy-efficient, flat-panel swing technologies such as LCDs (both fluorescent-backlit and LED), OLED displays, and plasma displays was a hardware revolution that began once computer monitors in the tardy 1990s. Most TV sets sold in the 2000s were flat-panel, mainly LEDs. Major manufacturers announced the discontinuation of CRT, DLP, plasma, and even fluorescent-backlit LCDs by the mid-2010s. In the near future, LEDs are conventional to be gradually replaced by OLEDs. Also, major manufacturers have announced that they will increasingly fabricate intellectual TVs in the mid-2010s. smart TVs later integrated Internet and Web 2.0 functions became the dominant form of television by the tardy 2010s.

Television signals were initially distributed lonely as terrestrial television using high-powered radio-frequency transmitters to puff the signal to individual television receivers. Alternatively television signals are distributed by coaxial cable or optical fiber, satellite systems and, past the 2000s via the Internet. Until the yet to be 2000s, these were transmitted as analog signals, but a transition to digital television is customary to be completed worldwide by the late 2010s. A suitable television set is composed of merged internal electronic circuits, including a tuner for receiving and decoding announce signals. A visual display device which lacks a tuner is correctly called a video monitor rather than a television.

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