The opera clips shown are from "Windstorm in Bubbleland" (episode 1475), "The Key to Otherland" (episode 1425), "Potato Bugs and Cows" (episode 1300), and "All in the Laundry" (episode 1370).
Mister Rogers invites Chuck Aber to tell viewers a little about himself: "I'm a pilot and I work for a delivery service. Sometimes I'm a salesman and I like to sing on the side." All of these details factor into this episode in some way.
The first of two times in the Modern Era where Rogers uses the model of the Eiffel Tower for Make-Believe. The other time is in episode 1761 during the final week of the series.
In Make-Believe, Officer Clemmons performs "La Donnaè Mobile" from the opera, Rigoletto, composed by Giuseppe Verdi.