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. editorial on ch 986 on Freesat. The GameCentral section continued online on the Teletext website before joining another DMGT website Metro and can now be found at http://www.metro.co.uk/tech/games/ Despite the withdrawal of news and information content, the service continued to broadcast. On 29 January 2010, the broadcasting regulator Ofcom revoked Teletext's licence to broadcast but as of the service was still on the air. On 27 May 2010, Ofcom imposed a financial penalty of £225,000 on Teletext Limited following the revocation of the public teletext service licence. Ofcom regulations state: "Public service broadcasting licences are offered for a fixed term,