Proper noun
Ceefax
English Wikipedia has an article on:CeefaxWikipedia
A simple information retrieval service offered by the BBC from 1974 until 2012, whereby "pages" of information are delivered sequentially to a television set and the viewer can move between them.
Ceefax and Teletext can have a larger number of captions for other languages due to the use of multiple VBI lines. Source: Internet
The television information retrieval service Teletext was initially introduced when the BBC Ceefax system went live on 23 September 1974. Source: Internet
UK/Australia The EBU Ceefax -based teletext systems are the source for closed captioning signals, thus when teletext is embedded into DVB-T or DVB-S the closed captioning signal is included. Source: Internet
You can also view page 696 of Ceefax, Monday's Guardian and specialist journals. Source: Internet
Page numbers were introduced in 2004 to aid navigation, with 3-digit page numbers matching with those of the analogue Ceefax in 2006. Source: Internet