Good summary of the debate from here (
http://www.guardian.co.uk/politics/2010/apr/16/leaders-tv-debate-clegg-brown-cameron)
Clegg: The other two are just liars and we want to do things differently.
Brown: The other two are just liars and we want to carry on doing the same.
Cameron: We are going to be tough on immigration because I once met a black man who is worried about it.
Clegg: We're going to be even tougher.
Brown: What's he doing here?
Cameron: I haven't a clue.
Clegg: We will have millions more policemen because I've met someone who has been burgled.
Cameron: We'll have even more.
Brown: No, you are going to cut them.
Clegg: They sound exactly the same.
Brown: Ha, ha. I'm going to kill you later.
Cameron: I'm going to keep Trident to nuke the Chinese.
Clegg: I can save billions by taxing Lord Ashcroft.
Brown: We have to carry on spending on the NHS because I met a cancer patient who said she was only alive thanks to me.
Alastair Stewart: Well, you three look half dead. Same time next week …