There are several characters who work at I&S studios who are caricatures of real people: the cartoonist who draws the Marge/Squirrel is based on Eddie Fitzgerald, who worked at Filmation and the three people with Meyers when he is asking Marge for suggestions are caricatures of Rich Moore, David Silverman and Wes Archer.
Homer and Marge take Maggie's attacks on Homer as being solely influenced by violent cartoons, but as we'll see in Who Shot Mr. Burns?, we'll see that Maggie really is capable of premeditated violence.
Alex Rocco makes his first of three appearances as Roger Meyers. Many people behind the series were huge fans of The Godfather (1972) and Jim Reardon looked for a way to shoot him in the eye as a reference to Rocco's character, Moe Greene.
The long montage of the Kids of Springfield playing was directed by Bob Anderson and is making a satirical point by saying the opposite of what the writers believed. The segment was written by John Swartzwelder and the idea of using Beethoven's 6th Symphony was in the original script. James L. Brooks had wanted the episode to end with the montage, but the writers disagreed.