BBC teletext service, Ceefax, was introduced, created initially to provide subtitling, but developed into a news and information service. In 1978, BBC staff went on strike just before the Christmas of that year, thus blocking out the transmission of both channels and amalgamating all four radio stations into one. Since the deregulation of the UK television and radio market in the 1980s, the BBC has faced increased competition from the commercial sector (and from the advertiser-funded public service broadcaster Channel 4), especially on satellite television, cable television, and digital television services. In the late 1980s, the BBC began a process of
MediaCorp Teletext available for browsing via the Internet and features a nearly up-to-date version of the Teletext shown on television (delays might be up to 10 minutes). As with the Teletext on television, this service is now discontinued. MediaCorp Teletext MediaCorp Teletext was a Singaporean teletext information service provided by MediaCorp. It was carried on MediaCorp's Channel 5, Channel 8 and Channel NewsAsia. On top of the standard information carried by most teletext providers, it also carried information unique to Singapore, such as COE and ERP rates, announcements from selected ministries in Singapore and lottery results. The service was also accessible over