Editing ORACLE (teletext) (section)

===Channel 4===
====4-Tel on View====
Shown between 1983 and January 1997, 4-Tel on View was a magazine featuring previews of the day's Channel 4's programmes as well as back-up information and other features, such as the adventures of a dog called 4-T, from Channel 4's own "4-Tel" teletext service. The transmissions were especially notable from 1986 when animated graphics were introduced. Although the service was transmitted alongside Oracle on Channel 4, 4-Tel was editorially and legally separate, and operated for Channel 4 by Intelfax Ltd.

From 1983 until the start of Channel 4's breakfast television service in April 1989, the 4-Tel magazine ran for 15{{spaces}}minutes and was repeated several times each day<ref name=Y1>{{cite web | url=https://www.youtube.com/watch?v=6qal2bvp558  |archive-url=https://ghostarchive.org/varchive/youtube/20211221/6qal2bvp558 |archive-date=2021-12-21 |url-status=live| title=Channel Four 20th November 1986 - 4-Tel On View, ORACLE On View and ETP-1 | date=13 July 2018 | author=sub-TV | publisher=YouTube | access-date=7 June 2020}}{{cbignore}}</ref> with transmissions airing at increasingly early times of the day as Channel 4 expanded its broadcast hours. Following the start of breakfast television, however, 4-Tel on View was shown in a single block, initially 40{{spaces}}minutes in length, before the start of programmes.<ref>[https://www.youtube.com/watch?v=cUuOXSG3bKk 4-Tel Pages 23 December 1989, which includes The Christmas Adventures of 4-T]</ref> After ORACLE lost its franchise on 31 December 1992, 4-Tel on View continued to be shown and from 1 January 1993 until Channel 4 started 24-hour broadcasting in January 1997, 4-Tel on View was generally shown throughout Channel 4's entire closedown period.<ref>[https://www.youtube.com/watch?v=a5-tM70eIx8 Channel 4 Closedown & 4-Tel on View Pages 28 March 1994]</ref><ref>[https://www.youtube.com/watch?v=rOY3mknigZk Channel 4 Closedown & 4-Tel on View Pages 7 April 1996]</ref>

====Oracle on View====
Between 1983 and 1989, Channel 4 broadcast pages from the ORACLE service on air. Shown in 15-minute bursts, and alternating with 4-Tel on View and showings of the [[ETP-1]] testcard, the pages were seen during the day when Channel 4 was not broadcasting actual programmes. Initially, the pages shown were from one aspect of the ORACLE service with the subject matter changing every so often.<ref name=Y1 /> but from September 1987, ''Oracle on View'' became a news service, adopting this format at the same time that Channel 4 expanded its broadcast hours to accommodate the transfer of [[ITV Schools]] to Channel 4.<ref>[https://www.youtube.com/watch?v=IdqH7VSKGio 4 Tel On View & Oracle - Fri 30 Dec 1988]</ref> Oracle on View ended on 31 March 1989, three days before Channel 4 started broadcasting breakfast television.