Nerves are always a big problem for me, which is why I loved doing American sitcoms. Because you know when you do the take in front of the audience that you're going to do it again afterwards. A minute after you finish, you just go and do it again. So, there's that sort of safety net. And then if you made a little mistake or two, they'll go pick it up, so there's nothing to worry about.
John CleeseThe main evolutionary significance of humor is that it gets us from the closed mode to the open mode quicker than anything else.
John Cleese