I have one of the new 250GB black xbox systems, and I want to hook it up to a smaller Tv when Mrs Gizmo wants to watch something on the main living room Tv. But the smaller Tv doesn't have a headphone socket, and neither does the Xbox. So is there a way of getting around this problem, to allow me to use headphones? I just need the sound that normally comes through the cinema system to come through a set of headphones, but there seems to be no obvious solution to this problem.

This is not for multiplayer online gaming, I don't need to talk to anyone, It's just me myself and I.