This episode marks the first time one of Clancy Wiggum's parents are revealed.
As of 2016, this episode has the longest title in the series. The shortest title is a tossup between season 12's "HOMЯ" and season 25's "Yolo".
When Burns first calls Fernando Vidal, Vidal thinks that it's Marrion Barry and it's time for another shipment, referencing the former mayors drug addiction.
During Grandparents' Day, as Mrs. Krabappel invites Grampa to speak, he's holding his oatmeal spoon in his left hand. Before and after, he's holding it in his right. When Grampa starts to sit at Mrs. Krabappel's desk, and during his nonsensical stories, the spoon has vanished.
Although Grampa's military unit was known as the "Flying Hellfish", both the elaborate headstone and stationery letterhead read "Fighting Hellfish."
Mr. Burns is shown to have the strength to kick Bart halfway across his and Grampa's boat. This is inconsistent with his appearances in other episodes, where he is extremely weak and tires easily, though he could have summed up all his energy just to do that.