Unearthed by our resident guru, Prosthetic Knowledge, Teletext is set to go completely extinct in 2012 as the UK transitions to digital broadcast and forsakes Teletext technology. The big victim will be Ceefax, the venerable information retrieval service offered by the BBC. In hopes of reviving the medium as an art form (which has been done, see the links), Prosthetic Knowledge, Max Capacity, and our friend, V5MT have been playing with CebraText, a software based Teletext editor, to create some new stuff. The eventual goal is to actually create some sort of revived Teletext art service, whether via the internet or even localized to a single location and television.
Teletext (or "broadcast teletext") is a television information retrieval service developed in the United Kingdom in the early 1970s. It offers a range of text-based information, typically including national, international and sporting news, weather and TV schedules. Subtitle (or closed captioning) information is also transmitted in the teletext signal, typically on page 888 or 777. (Wikipedia)If you'd like to try it out yourself, check out MicroTel, an older Teletext art project that was broadcast in the Netherlands a few years ago. There you can download CebraText and give it a shot. And if you get really into it, you can help us figure out how to present our (hopefully) revived medium.