A TV, ordinarily alluded to as TV, telly or the tube, is a telecom medium utilized for transmitting sound with moving pictures in monochrome (high contrast), shading, or in three measurements. It can allude to a TV set, a TV program, or the medium of TV transmission. TV is a mass medium, for excitement, instructive TV, news and promoting .

TV got to be accessible in unrefined exploratory structures in the late 1920s. After World War II, an enhanced structure got to be prevalent in the United States and Britain, and TV sets got to be ordinary in homes, organizations, and establishments. Amid the 1950s, TV was the essential medium for impacting open opinion.[1] In the mid-1960s, shading TV was presented in the US and most other created nations. The accessibility of capacity media, for example, VHS tape (1976), DVDs (1997), and top notch Blu-beam Disks (2006) empowered viewers to watch recorded material, for example, motion pictures. Toward the end of the first decade of the 2000s, advanced TV transmissions enormously expanded in notoriety. Another improvement was the move from standard-definition TV (SDTV)(576i, with 576 interweaved lines of determination and 480i) to top notch TV (HDTV), which gives a determination that is generously higher. HDTV may be transmitted in different configurations: 1080p, 1080i and 720p. Since 2010, with the development of shrewd TV, Internet TV has expanded the accessibility of TV projects and motion pictures by means of the Internet through administrations, for example, Netflix, iPlayer, Hulu, Roku and Chromecast.

In 2013, 79% of the world's family units possessed a TV set.[2] The substitution of right on time cumbersome, high-voltage cathode beam tube (CRT) screen shows with conservative, vitality effective, level board elective advancements, for example, plasma shows, LCDs (both fluorescent-illuminated and LED), and OLED presentations was an equipment insurgency that started with PC screens in the late 1990s. Most TV sets sold in the 2000s were level board, essentially LEDs. Real makers declared the stopping of CRT, DLP, plasma, and even fluorescent-illuminated LCDs by the mid-2010s.[3][4][5] LEDs are required to be supplanted steadily by OLEDs in the close future.[6] Also, real makers have reported that they will progressively create brilliant TV sets in the mid-2010s.[7][8][9] Smart TVs with incorporated Internet and Web 2.0 capacities are relied upon to turn into the overwhelming type of TV set by the late 2010s.

TV signs were at first disseminated just as physical TV utilizing powerful radio-recurrence transmitters to show the sign to individual TV recipients. Then again TV signs are appropriated by co-pivotal link or optical fiber, satellite frameworks and through the Internet. Until the mid 2000s, these were transmitted as simple flags yet nations began changing to advanced, this move is relied upon to be finished worldwide by late 2010s. A standard TV set is made out of various inside electronic circuits, including a tuner for getting and translating show signals. A visual presentation gadget which does not have a tuner is effectively called a feature screen instead of a TV.