I'm going to have to downgrade my idea from 'brilliant' to 'good' I think. might have got a bit over-excited.
it's related to televisions ceefax. it's not exactly going to make sales boom, which probably doesn't help, but it is the kind of thing I think people would see and think 'ooh that's good, can't believe it wasn't brought about sooner!'
the fact it won't make sales boom, isn't an integral part of a tv, and that I have no knowledge of the technical side of it has caused me to downgrade from brilliant. all I know is it's good and definately do-able.
then also, as it would become a part of an already selling product, what would happen if say I did get it patented and presented successfully etc etc. Seeing as it's not a device of it's own from which you could measure sales, would television manufacturers pay a lump sum to buy the idea and implement it? getting way ahead here, I doubt anything will ever come of this

just a bit intrigued