Moe's sign at the Itchy & Scratchy protest reads: "Bring back 'Wagon Train.'"
One of the clips used in this clip show episode.
The last Itchy & Scratchy cartoon from this episode is shown on TV.
The scene where Maggie knocks Homer unconscious with a mallet is a shortened but very accurate shot-by-shot recreation of the shower scene, in a different setting (a garage) and slightly different details eg. red paint instead of blood.
Kent Brockman's "Smartline" program spoofs "Nightline."
Maggie's mallet assault on Homer directly spoofs the first murder in this film, with a curtain being pulled off its hooks, red blood/paint going down a drain and then a cross-fade from the drain to the victim's open eye.