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 systems mounted a large market trial in Los Angeles in partnership with NBC and Public Broadcasting Service (PBS) Public television. Services premiered simultaneously on station KNXT (now KCBS-TV), KNBC and KCET in Los Angeles. All three services included an array of local news and information services. KCET's service also included service components for use in schools. Later, an official North American standard of teletext, called NABTS (North American Broadcast Teletext Specification) was developed in the early 1980s by Norpak, a Canadian company. NABTS provided improved graphic and text capability over WST, but was quite short-lived. This was mainly due to the