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
TVNZ Teletext TVNZ Teletext TVNZ teletext was the only analog teletext in New Zealand. It was also available on Freeview. It was launched in 1984 with funding raised in the 1981 New Zealand Telethon, to provide news and information for the deaf. The information service closed on 2 April 2013, but television captions will continue. TVNZ cited the reasons for closure due to the aging equipment used and the reduce need for such a service as most information can now be found online. It carried: It also had captions to most recorded programs. Teletext was available to viewers of TVNZ channels such