It is part of Hollywood legend that one of the source recordings for the "laugh track" sounds heard on sitcoms since the 1960s originated from a particularly long bit of laughter that erupted during an episode of this series.
Well, I believe in doing it the old-fashioned way.
Groucho: You know I must have some reputation. There isn't anything anyone can say on this stage that won't evoke some kind of a dirty laugh from the audience...
Groucho: What do you mean, 'the old fashioned-way'?