TV prank

I can't watch Youtube where I am but think this is the one I saw on Australian television (20 to 1: Pranks and Pranksters) last night.  I was just about wetting myself.  I can so relate to that guy as I have been known to get the hysterical giggles in inappropriate situations and not be able to stop laughing.  I am pretty sure this is a set up (ie, the stony faced expressions of all the other 'guests') seem a bit of a giveaway.  Also some of the things the squeaky voiced guy says seem designed to provoke the host into further hysteria.  Very very funnym though!