After Mrs. Douglas tells the story about her father the king, Mr. Kimball knocks at the front door. When Oliver lets him in, the painting of multi-colored squares and rectangles that is hanging in their New York apartment when the opening song plays can be seen leaning in a stack of paintings to the right of the door, but it is upside down from how it hangs on the wall in New York.
Arnold the Pig also has a two dates scheduled for the same night: one with Annabelle Lambert, a sow he's been dating, and the other with Penelope, a pig who racks the balls at the pool hall.
The license plate number on Haney's truck is shown to be: JLZ 257.
This being her only appearance in this series, Kristin Harmon, who plays Carol, is perhaps best known as Ricky Nelson's real-life wife, as well as the actress who portrays his wife in the TV series The Adventures of Ozzie and Harriet (1952).
Mr. Haney's usual schtick of mispronouncing and/or repurposing words includes the routine he uses in counseling Eb on love. He explains that "mal de mer," which literally means seasickness, is French for lovesickness; "mer," he claims, means love in French, as in "le mer, le mer, toujours le mer," which would literally mean the sea, the sea, always the sea, when the correct French would be "l'amour, l'amour, toujours l'amour," meaning love, love always love.