Teletext now known as Ceefax ("see facts", the departmental stationery used the "Cx" logo), on various news shows. The Independent Television Authority (ITA) announced their own service in 1973, known as ORACLE (Optional Reception of Announcements by Coded Line Electronics). Not to be outdone, the GPO immediately announced a 1200/75 baud videotext service under the name Prestel. The first teletext test transmissions were made by Ceefax in 1973. After proliferation of the BBC system in the UK, it was adopted in Europe and standardised as World System Teletext (WST). The World Wide Web began to take over some of the functions
Teletext death, but the widespread rollout of internet access in the 1990s ended these efforts. Besides the US and UK developments, a number of similar teletext services were developed in other countries, some of which attempted to address the limitations of the initial British-developed system. In France, where the SECAM standard is used in television broadcasting, a teletext system was developed in the late 1970s under the name "Antiope". It had a higher data rate and was capable of dynamic page sizes, allowing more sophisticated graphics. It was phased out in favour of standard teletext in 1991. The Acorn BBC Micro's