Teletext systems network in the mid-late 1970s. Due to the adoption of a common teletext standard (WST), the ORACLE system ceased in 1976. The name was retained for the service itself, that continued after that year using the WST standard. "World System Teletext" (or "WST") is the name of a standard for teletext throughout Europe today. Almost all television sets sold in Europe since the early ’80s have built-in WST-standard teletext decoders as a feature. It originally stems from the UK standards developed by the BBC (Ceefax) and the UK Independent Broadcasting Authority (ORACLE) in 1974 for teletext transmission, extended in 1976
Teletext Ltd. 400-499 (which replaced pages 300-399 as Channel 4's page space). However on 30 October 2008, Teletext on 4 on Channel 104 closed and replaced in December 2008 by 1-2-1 Dating. using Teletext on 4's old channel number. Teletext Ltd. Teletext Ltd was the provider of teletext and digital interactive services for ITV, Channel 4 and Five in the United Kingdom. Teletext Ltd currently runs Teletext Holidays and Teletext Cars only. "Teletext Ltd" started providing teletext services for ITV and Channel 4 on 1 January 1993, replacing the previous ORACLE service which had lost the franchise. The company is now owned