The Simpson family looking for the body is a reference to the film Stand By Me.
At The Pimento Grove, there are pictures showing characters and guest stars including Birch Barlow, Barry White, Bette Midler, Brooke Shields, Stephen Hawking, Rainier Wolfcastle, Johnny Carson, David Crosby, Leonard Nimoy, Anthony and Flea from The Red Hot Chili Peppers, Ron Howard, Paul McCartney, Betty White and Bumblebee Man.
In this episode, it hints that Waylon Smithers, Jr. became gay after Mr. Burns lie about how Mr. Smithers, Sr. died. Mr. Burns says that he told Mr. Smithers, Jr. that his father was killed by women in the Amazon, and says that it had no effect on him. Then, Waylon uncontently and hesitantly agrees.
At the end of the episode, Homer is placing Smithers Sr.'s skull in a memories box on the coffee table. Moe arrives, and when he sits down, the memories box is gone. After a close-up of Moe's face, the table is gone.