Television (TV) is a telecommunication medium used for transmitting moving images and sound, serving as a powerful and popular form of mass communication. It functions as a medium for advertising, entertainment, news, and sports. The term can refer to a physical television set, a television program (TV show), or the entire medium of television transmission. How television works
The process begins with a video camera recording pictures and sound and converting them into electric signals. A transmitter sends this signal through the air as radio waves (terrestrial television) or through cables (cable television). Alternatively, signals can be relayed from communication satellites (satellite television).
A TV set receives these signals and decodes them back into pictures and sound for viewing.