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
TVNZ is still use the former channel programs). TVNZ began a teletext service in 1984 originally with the intention to help New Zealand's deaf community get improved access to news and information. A captioning service was available for certain television shows and could be accessed by browsing to page 801. The TVNZ Teletext service could be received on all TVNZ channels and the TVNZ service could be received on TV3 including captioning of some TV3 shows. Trackside also operated a Teletext service called TAB Text which only displayed the racing pages of Teletext. A Teletext capable television was usually required to