Teletext default graphics mode (mode 7) was based on Teletext display, and the computer could be used to create and serve Teletext-style pages over a modem connection. With a suitable adapter, the computer could receive and display teletext pages, as well as software over the BBC's Ceefax service, for a time. The Philips P2000 home computer's video logic was also based on a chip designed to provide teletext services in TVs. Prestel was a British information-retrieval system based on teletext protocols. However, it was essentially a different system, using a modem and the phone system to transmit and receive the data,
ORACLE (teletext) to the highest bidder. ORACLE successfully campaigned for the creation of a franchise for the teletext service on ITV and Channel 4, only to find themselves outbid by Teletext Ltd., a consortium originally comprising Associated Newspapers, Koninklijke Philips Electronics N.V. and Media Ventures International, who started broadcasting at midnight on New Year's Day 1993. At various times of the day, ORACLE pages were broadcast in vision, albeit mostly on Channel 4, although occasionally pages were shown during the night on ITV. Shown between 1983 and January 1997, 4-Tel on View was a magazine featuring previews of the day’s Channel 4’s