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
Teletext which Teletext is carried. A number of broadcast authorities have recently ceased the transmission of teletext services. "(Subtitling still continues to use Teletext in these three countries with some providers switching to using image based DVB subtitling for HD broadcasts. New Zealand solely uses DVB subtitling on terrestrial transmissions despite Teletext still being used on internal SDI links.)" Teletext Teletext (or broadcast teletext) is a television information retrieval service created in the United Kingdom in the early 1970s by the Philips Lead Designer for VDUs, John Adams. Teletext is a means of sending pages of text and simple geometric shapes