I've put this quiz together for a few american music boards I frequent. It's an album covers and intro clips extravaganza - and it's quite hard.

http://music.ithium.net/quiz/

I ran this last year, and got the boards to compete collectively against each other. The idea is that you elect someone to compile the answers on the board's behalf, and everyone emails/aims them the answers they know.

As one of the bigger UK music boards, would this tickle your fancy?