Martin O'Collins

Fireball of Christ

Scientists investigate what their led to believe to be the source of an unknown light that persuaded the Roman Emperor Constantine to convert to Christianity.

Ghost Train

A journey by Intercity into the world of the supernatural.

This is CEEFAX

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.