This is CEEFAX (1975)

A look-behind-the-scenes at a television development that could be in everyone's home in just a few years' time. Reporter Angela Rippon tells the story of CEEFAX - the BBC's latest form of broadcasting. She visits Kingswood Warren where BBC Research Department 'boffins' developed it; and looks at some of its uses: News, weather, travel, sports results, farm prices and business information.