-The music in the couch gag is the same music used at the end of "Deep Space Homer" where the crayon Bart throws up morphs into the Fox satellite that crashes into baby Homer in space. (What's the name of this piece?)
-Jack Chick tracts: "Local bully to Homer: Haw-Haw!" in Springfield Shopper. These religious tracts are the most famous instance of spelling Ha-Ha with a trailing W. Nelson's trademark laugh is usually spelled without a W.
-Goof: In the Springfield Googolplex marquee, the movie showing in theater 2 is listed as "Fashion of the Christ" one the main display but "A Kiss Before B..." (cut off) on the right.