This episode marks the second time Homer was cast to be a Marvel Comics character (which also was a beast-like character); the first time was in "I Am Furious (Yellow)", where he lost his temper and temporarily acted as The Incredible Hulk.
Referring to the remark about Homer talking about the previous episode, this also sort of happens in "Treehouse of Horror XII," where the Leprechaun from the first story, "Hex and the City", is seen on Bart's back in the "Wiz Kids" segment.
The scene where Professor Frink kicks his father in the crotch is similar to the second Scooby-Doo movie, where Velma kicks the Black Knight ghost in the crotch, saying it was his "weak spot". The film was released 4 months after the episode aired.
The Beverely Hillbillies After Professor Frink showed Lisa Simpson a clip from The Beverely Hillbillies he removed Elly May and Granny's clothes. In the scene Granny told Elly May that she had some bad news, Jethro ate her monkey.
After first freezing Lisa, Bart says "Wow, she looks like a background character from a Hanna-Barbera cartoon". Referencing that background characters in cartoons are often still and motionless.
The scene where Death is chasing the Simpson family in the upstairs of their house is similar to the Scooby-Doo characters being chased through a set of rooms.
At the begining of the segment Professor Frink states that his father no longer has a penis. However later on in the segment Professor Frink kicks him in the "balls" (penis), it is never mentioned that Professor Frink's father had gotten a penis in some way, this however could be just a simple mistake.