During the taping of this episode, everyone performed their parts without retakes...except Bob Newhart. He had more trouble saying the name "Schmidlapp". He would flub that repeatedly and can be heard saying "Smidlapp" instead.
In the 1950s sitcom, "The Life of Riley", William Bendix played the lead character Chester A. Riley and one of his buddies was Otto Schmidlapp (played by Henry "Bomber" Kulky).