Teletext systems the country being closed captioning, TV Guide On Screen, and Extended Data Services (XDS). A version of the European teletext standard designed to work with the NTSC television standard used in North America was first demonstrated in the US in 1978 by station KSL in Salt Lake City, Utah, premiered a teletext service using Ceefax. They were followed by American television network CBS, which decided to try both the British Ceefax and French Antiope software for preliminary tryouts for a teletext service, using station KMOX (now KMOV) in St. Louis, Missouri as a testing ground. CBS decided on Antiope and
BBC World Service Television near-continuous direct rebroadcast of BBC1 and schedule pattern timed to UK time (GMT/BST), it had a schedule pattern more synchronised to Central European Time and many of its first-run programmes were timeshifted to more suitable times for viewing in CET, as well as showing specially commissioned "World Service News" bulletins from Television Centre. The BBC World Service News studio looked like the BBC's domestic news, though with different graphics and an on-screen logo. The station also broadcast its own Children's BBC junctions from Presentation Studio A. Outside Europe, BBC World Service Television was the name of the 24-hour news, information