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
World System Teletext World System Teletext World System Teletext (or WST) is the name of a standard for encoding and displaying teletext information, which is used as the standard for teletext throughout Europe today. WST originally stems from the UK standard developed by the BBC and the UK Independent Broadcasting Authority in 1974 for teletext transmission, extended in 1976 as the Broadcast Teletext Specification. With some tweaks to allow for alternative national character sets, and adaptations to the NTSC 525-line system as necessary, this was then promoted internationally as "World System Teletext". It was accepted by CCIR in 1986 under international standard CCIR