Newsnight had a bit of fun at Gordon Brown's expense today. David Cameron has called for a debate, Brown has refused. So far, so predictable. Cue the Newsnight report which retrieved a 20 year old bit of television featuring a young MP called Gordon Brown, busy attacking then PM Margaret Thatcher for her refusal to hold a debate with opposition leader Neil Kinnock. 'So what's changed in those twenty years?' asked the Newsnight man at Brown's press conference today, to general laughter. Oh, and another fascinating feature of the archival tv segment was the big haired young presenter - one J. Paxman esquire.