Teletext Ltd. on 31 January 2011, with editorial content from the Radio Times instead of Teletext Ltd. In spite of its name, the ""Teletext""-branded service was neither the first nor the only teletext service in the UK. The BBC (one of the original developers of teletext) launched its Ceefax teletext service in 1974, the same year that "Teletext's" predecessor, ORACLE also appeared. Although ORACLE closed at the end of 1992 (when Teletext Ltd outbid it for the franchise), Ceefax continued to run on BBC analogue channels until the cessation of analogue signals in October 2012. FourText, originally called 4-Tel, was first run
Teletext list of news headlines might appear on page 110; a teletext user would type "110" into the TV's remote control to view this page. The broadcaster constantly sends out pages in sequence. There will typically be a delay of a few seconds from requesting the page and it being broadcast and displayed, the time being entirely dependent in the number of pages being broadcast. More sophisticated receivers use a memory buffer to store some or all of the teletext pages as they are broadcast, allowing instant display from the buffer. This basic architecture separates from other digital information systems, such