Television

Television (also, informally, "TV" and "telly") is the distant electronic transmission of moving pictures. Most television transmissions also include synchronized sound, an exception being surveillance cameras, which usually have no audio.

"Television" literally means "far sight". The word was formed by combining the Greek word τῆλε ("tele", or "far") with the Latin word visio-n ("sight", from video, vis- to see) — this coinage follows the pattern of telegraph ("far writer") and telephone ("far talker"). In general usage, the meaning of "television" has been expanded to also refer to receivers, and to both the video broadcasting industry and its programming.

Broadcasting development

After many years of research, the first regular television service in England began operation in 1936. Initially, the British Broadcasting Company alternated between John Logie Baird's 240-line mechanical system, which employed scanned film as an intermediate step, and EMI-Marconi's 405-line "System A", which used Vladimir Zworykin's all-electronic setup. The Baird system tests were ended after four months. And the start of the Second World War resulted in the suspension of the BBC service beginning September 1, 1939, not to be resumed until June 7, 1946.