This was being looked at, based on that Netflix model, but there was some concern over 'privacy' in tracking the passenger from one flight to the next. Now I couldn't quite understand why that would be an issue - to my simple mind, you'd just ask someone to give you permission to do X - but much smarter people than me are working on this, so there'd have to be something to it. I agree though, suggesting new content based on past viewing history would be fantastic.