This episode establishes that Jerry and Millie have three kids as Jerry comes over and wants his daughter Patty to audition for the show. Previous episodes establish that they also have two other children Ellen and Freddie. Patty is never seen on the show and Ellen only makes one appearance on it. Freddie, however, will appear occasionally over the years.
Dick Van Dyke's sons, Barry Van Dyke and Christian Van Dyke, guest star in this episode.
The aria that Kenneth sings in the Petrie's living room is "La ci darem la mano" from Don Giovanni. However, it does not occur until late in the first act.
Rob and Laura's dining table and chairs are missing in this episode and replaced with a piano.