Teletext in Salt Lake City, Utah premiered a teletext service using Ceefax. They were followed by television network CBS, which carried out preliminary tests on both the British Teletext and the rival French Antiope system. One of the most prominent providers was the "Electra" teletext service, using World System Teletext (WST), broadcast from the early 1980s on American cable channel WTBS. Electra also carried another teletext service on its higher-numbered pages, a service called "Tempo". "Tempo" mainly carried sports (and other miscellaneous) information on its pages. At the time of Electra's closing in 1993, it was the only existing teletext service
Teletext Ltd. findings, the service would cease broadcasting most of its services on analogue and digital television, with the exception of the commercial services broadcast on Freeview channels 101-107 such as Teletext Holidays and the firm's profitable travel websites in January 2010, with the switch off date subsequently brought forward to 14 December 2009 (Sky Digital) and 15 December 2009 (analogue TV, Freesat and Freeview). Teletext's news and information service were removed from: ITV, Channel 4 and Five on analogue TV; ITV and Channel 4 on Sky Digital; ITV, Channel 4 and channel 100 on Freeview; editorial on Teletext Extra on Freeview;