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Television (TV), sometimes edited to tele or telly, is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in color, and in two or three dimensions and sound. The term can attend to 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 easy to use in slipshod experimental forms in the tardy 1920s, but it would yet be several years previously the other technology would be marketed to consumers. After World prosecution II, an improved form of black-and-white TV broadcasting became popular in the joined 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 new developed countries. The availability of multipart types of archival storage media such as Betamax and VHS tapes, high-capacity difficult disk drives, DVDs, flash drives, high-definition Blu-ray Discs, and cloud digital video recorders has enabled listeners to watch pre-recorded materialsuch as moviesat home on their own epoch schedule. For many reasons, especially the openness of proud retrieval, the storage of television and video programming now occurs upon the cloud (such as the video upon demand sustain by Netflix). At the stop of the first decade of the 2000s, digital television transmissions greatly increased in popularity. option expansion was the involve from standard-definition television (SDTV) (576i, in the same way as 576 interlaced lines of resolution and 480i) to high-definition television (HDTV), which provides a pure that is substantially higher. HDTV may be transmitted in various formats: 1080p, 1080i and 720p. since 2010, past the invention of intellectual 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 prematurely bulky, high-voltage cathode ray tube (CRT) screen displays past compact, energy-efficient, flat-panel oscillate technologies such as LCDs (both fluorescent-backlit and LED), OLED displays, and plasma displays was a hardware mayhem 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 time-honored to be gradually replaced by OLEDs. Also, major manufacturers have announced that they will increasingly build intellectual TVs in the mid-2010s. smart TVs considering integrated Internet and Web 2.0 functions became the dominant form of television by the tardy 2010s.

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

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