1historical An apparatus for transmitting and receiving television pictures in which a video signal is generated by the action of light on photoconductive cells after having passed through a revolving perforated disk, this signal controlling the brightness of a neon lamp which, in conjunction with a second disk, projects an image; (originally and especially) a device of this kind designed and patented by John Logie Baird.
2rare A person who works in the television industry, e.g. as a presenter.
3An organization that makes or broadcasts television programmes.
1920s; earliest use found in The Glasgow Herald. Probably partly from televis- + -or.