Station identification is the practice of radio or television stations or networks identifying themselves on air, typically by means of a call sign or brand name (sometimes known, particularly in the United States, as a "sounder" or "stinger", more generally as a station or network ident). Over-the-air (OTA) transmitters may be required by a governmental licensing authority to identify themselves at regular intervals; this requirement can apply to any form of transmission over the radio spectrum by any means, not merely mass-media audio or video broadcasters. Non-OTA broadcasters, such as cable or pay TV networks, may also practice regular identification as a form of branding.
History of the BBC ONE Idents
Since the launch of the channel in 1964, BBC ONE has seen nine different incarnations of the on-screen identity. 1964 - The first ident was a continuation of the BBC-tv ident of 1963. It featured the globe on a white background. The original ident had a BBC-tv logo. This was changed to just BBC when the channel was launched. 1966 - While the BBC 1 ident symbol remained, a "watch-strap" globe was introduced in 1964, showing the globe in the middle of a striped band. In 1968, the channel converted to colour - the globe and BBC 1 logo remained. 1969 - The first colour ident was introduced. A blue and black mechanical globe rotated while a curved mirror placed behind made up the famous image. 1972 - The globe and colour scheme remained the same, but a rounder, italic font was used for the ident introduced in 1972. 1978 - A new blue and yellow globe was introduced. The colour was added using electronics and a new big bold font was introduced. 1981 - A colour change was made to the globe - yellow became green. The caption also changed to a double line version (similar to the BBC 2