Right then, Ceefax Page 777.
For those of you in this country, you'll know that if you go to Ceefax Page 888 on television it gives you subtitles for most programmes. Dead handy if there's no volume, you're deaf, or even if your English is not so good. It can get quite amusing in live programmes such as the news, when the typists make a few mistakes, but on the whole, Page 888 is a great concept because it helps you understand what is being said.
But what about other things about programmes that you might be wondering, that aren't so obvious? Who exactly is that actor and what else has he been in? What's that music playing in the background?
Well, Ceefax Page 777 would answer all these sorts of questions, and more. For example it might tell you "This drama was recorded in York, doubling as 18th century London. The city centre was closed for 2 days for filming." or "The man in the hat is played by such and such an actor, who you'll recognise from the paint adverts, who studied at some drama school or other, and whose past jobs include chartered accountant, and then official juggler to the King of Finland" or perhaps "The song playing in the background is from Moby's latest album. He only allowed it to be used on the condition that the two paramedics in this scene wore twizzling bow-ties." Or whatever.
All those questions you've wondered about when watching telly – and more – would be answered by Ceefax Page 777's vast team of skilled and laborious researchers. Certainly there'd be a cost to such a huge venture – so the service should be sponsored, and who better than the soft drink 7-Up?
There's definite mileage in this idea, I'm sure…

A friend of mine has just emailed me this delightfully sweet thought for the day: