Teletext a plug in circuit board. It took another decade before the decoders became a standard feature on almost all sets with a screen size above 15 inches (teletext is still usually only an option for smaller "portable" sets). From the mid-1980s both Ceefax and ORACLE were broadcasting several hundred pages on every channel, slowly changing them throughout the day. The "Broadcast Teletext Specification" was published in September 1976 jointly by the IBA, the BBC and the British Radio Equipment Manufacturers' Association. The new standard also made the term "teletext" generic, describing any such system. The standard was internationalised as World
BBC World Service Television BBC World Service Television BBC World Service Television, often abbreviated to WSTV (World Service Television), was the name of two BBC international satellite television channels between 1991 and 1995. It was the BBC's first foray into worldwide television broadcasting. In Europe, it was the successor to BBC TV Europe, which it replaced on 11 March 1991. The service was also launched in Asia as a 24-hour news and information service with minor differences, a precursor to BBC World News, launched on 14 October 1991. Unlike the BBC World Service at the time, it was not funded by the British government