I love that scene. It's on my rotation of youtube clips to watch. I also like the introduction of Larry, Daryl, and Daryl on Newhart where they will "do anything for a buck"
I'm reading James Burrows's book, he directed Taxi, Cheers, Friends, WIll and Grace.... he said the biggest laughs he ever got from a single scene was the famous Driving Test scene in Taxi. He also said Will and Grace was the funniest overall show he did.
God, I miss the 3 camera setup with a laugh track. Real theatrical throwbacks.