In Life on Mars, Sam Tyler discovers the real reason he's back in 1973. David Dimbleby interviews Osama bin Laden on his 50th birthday. Lily Allen sings about how great she is. In another deleted scene from Casino Royale, James Bond has trouble with the gadgets in his car.

The Scissor Sisters rub shoulders with the likes of Madonna, Jennifer Aniston, Rowan Williams, Albert Steptoe and Ricky Gervais on the impressions show. Plus Tony Blair regenerates into David Tennant.