Film and Media Atlas

How Stories Are Broadcast
Sign In
Text size
100%
Theme

Switch Atlas

Technology

Teletext

Broadcast Technology

A broadcast standard that displays pages of text and simple graphics on a television screen by hiding the data inside the invisible vertical blanking interval of an ordinary broadcast signal, letting a viewer call up numbered pages of news, weather or listings with a remote control, though the system could only send, never receive, information. The BBC's Ceefax service, the first teletext service, launched in the United Kingdom on 23 September 1974, and the rival ITV service, Oracle, followed in 1975.

Facts
Introduced Year
1974 1
The BBC's Ceefax service, the first teletext service, launched in the United Kingdom on 23 September 1974; the rival ITV service, Oracle, followed in 1975.
Origin
Created in the United Kingdom in the early 1970s by John Adams, Philips lead designer for video display units, originally to provide closed captioning for the hearing impaired; the BBC's Ceefax became the first public teletext information service in 1974. 1
Connections

Associated With

ITV, Organizations

Developed By

BBC, Organizations

The BBC's Ceefax was the first teletext service, launched 23 September 1974.

Source Wikipedia
Additional Source BBC, WikipediaHistory section
John Adams (teletext engineer), Figures
Source Teletext (Wikipedia)

In Medium

Television, Media Forms
Sources
1. Wikipedia
Wikimedia FoundationTeletext, History section
Quote, Teletext, History section
In 1971, CAL engineer John Adams created a design and proposal for UK broadcasters.
View the Source
Teletext (Wikipedia)
  • technology description section
    Teletext sends data in the broadcast signal, hidden in the invisible vertical blanking interval (VBI) area at the top and bottom of the screen.
  • Teletext (Wikipedia), introductory section, Ceefax launch
    Teletext was created in the United Kingdom in the early 1970s by John Adams, Philips' lead designer for video display units to provide closed captioning to television shows for the hearing impaired. Public teletext information services were introduced by major broadcasters in the UK, starting with the BBC's Ceefax service in 1974.
View the Source
BBC, Wikipedia
Developed By: BBC, History sectionView the Source
Comments (0)
No comments yet. Be the first to share a thought.
Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.