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Television (TV), sometimes shortened to tele or telly, is a telecommunication medium used for transmitting distressing 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 enlargement medium for advertising, entertainment, news, and sports.

Television became affable in substandard experimental forms in the tardy 1920s, but it would yet be several years past the supplementary technology would be marketed to consumers. After World lawsuit II, an greater than before form of black-and-white TV broadcasting became popular in the joined Kingdom and united 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 extra developed countries. The availability of complex 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 house on their own period schedule. For many reasons, especially the openness of remote retrieval, the storage of television and video programming now occurs upon the cloud (such as the video on request give support to by Netflix). At the stop of the first decade of the 2000s, digital television transmissions greatly increased in popularity. unusual expand was the touch from standard-definition television (SDTV) (576i, next 576 interlaced lines of conclusive and 480i) to high-definition television (HDTV), which provides a perfect that is substantially higher. HDTV may be transmitted in various formats: 1080p, 1080i and 720p. in the past 2010, afterward the invention of smart television, Internet television has increased the availability of television programs and movies via the Internet through streaming video facilities such as Netflix, Amazon Video, iPlayer and Hulu.

In 2013, 79% of the world's households owned a television set. The replacement of early bulky, high-voltage cathode ray tube (CRT) screen displays in the manner of compact, energy-efficient, flat-panel exchange technologies such as LCDs (both fluorescent-backlit and LED), OLED displays, and plasma displays was a hardware revolution that began similar to computer monitors in the late 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 received to be gradually replaced by OLEDs. Also, major manufacturers have announced that they will increasingly develop intellectual TVs in the mid-2010s. smart TVs following integrated Internet and Web 2.0 functions became the dominant form of television by the tardy 2010s.

Television signals were initially distributed and no-one else as terrestrial television using high-powered radio-frequency transmitters to broadcast the signal to individual television receivers. Alternatively television signals are distributed by coaxial cable or optical fiber, satellite systems and, in the past the 2000s via the Internet. Until the forward 2000s, these were transmitted as analog signals, but a transition to digital television is received to be completed worldwide by the tardy 2010s. A good enough television set is composed of multipart internal electronic circuits, including a tuner for receiving and decoding puff signals. A visual display device which lacks a tuner is correctly called a video monitor rather than a television.

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