The previous reviewer who said that Connolly is unfunny seriously needs to get a sense of humour transplant. "An audience" is probably one of Billy's best ever performances. However there seems to be two versions in existence. The full length version and a shorter edited version so if you get the chance to watch this show, try and get the full length version. The full length version contains the questions from the audience and Billy's great answers. The edited version doesn't have the question and answer section.
Probably the greatest gag is the sketch where the incontinent guy buys waterproof pants from the newspaper and then goes out to the nightclub. The audience was on the floor and so was I. Part of Billy's great appeal as a comedian is his ability to tell a joke in an extremely funny way and also to do visual gags such as accents, dances, faces and such like. Billy's complete mastery of this makes him probably one of the funniest comedians in the world.
Saying that however, Connolly has definitely mellowed in his old age. Marriage and kids have also made him a lot softer with his humour so "An Audience" has a special place in my heart because it reminds me of the crazy reckless hysterical shaggy guy he used to be before he emigrated to the USA, shaved the beard off and became a respectable movie actor.
A comedy classic. Don't miss it.