http://www.youtube.com/watch?v=bbhEEACV3cc Oh my.
This isn't the guy's full explanation - I watched the full episode on iplayer, where he explains more. But this seems like it could be a damn good show!
And it's nice to see another description of space-time like that. I've tried explaining to people before I watched this and haven't managed to get more than a "..?" from them.