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 Russian Service tried to bring to listeners in Soviet Union information they were deprived of, including works of writers and dissidents who could not publish their work at home, such as Alexander Solzhenitsyn. Jamming finally stopped in the late 1980s, as perestroika took hold. The BBC Russian Service has moved all its operation to the Internet, halting radio broadcasting after 65 years on air. Before the final decision to concentrate on online production the Russian Service radio was available only on AM. The BBC Russian Service partnered with "Bol'shoe Radio" (), an FM broadcaster in Moscow between April and August 2007. Daily