ORACLE (teletext) ORACLE (teletext) ORACLE (from "Optional Reception of Announcements by Coded Line Electronics") was a commercial teletext service first broadcast on the ITV network in the mid-late 1970s and later on Channel 4 in the United Kingdom, finally ending on both channels at 23:59 UTC on 31 December 1992. It was developed and launched by a consortium backed by the Independent Broadcasting Authority at about the same time as the BBC's Ceefax service. Due to the lack of available receivers, exact launch dates have been left obscure. Receivers became popular around 1980. In Britain ORACLE, ITV's teletext service, was launched as
Electra (teletext) Electra (teletext) Electra was a teletext service in the United States that was in operation from the early 1980s up until 1993, when it was shut down due to a lack of funding, and discontinuation of teletext-capable television sets by the only US television manufacturer offering teletext capability at the time, Zenith. It was owned, operated and maintained by Cincinnati-based Taft Broadcasting (specifically at their flagship station, WKRC-TV, which had debuted the service in their area first) and Tulsa, Oklahoma-based Satellite Syndicated Systems (SSS), in cooperation with cable/satellite TV station Superstation WTBS (now TBS), who carried Electra's data on their