Besides the episode with The Who, I think my all-time favorite moment is the appearance of Howell Huser. His real-life counterpart was one of my favorite television personalities.
Reminds me of the Egyptian pharaoh Catfish Chisel.
Can’t find it online and I don’t remember exactly:
Santa’s Little Helper (the dog) picks up a scent.
Chief Wiggum: Let him go, Lou. He’s not following his nose; he’s following his heart.
Lou: Sometimes I forget why you’re the chief, (choking up) but I remember now!
Bart: Wooow, my father, an astronaut. I feel so full of … What’s the opposite of shame?
Marge: Pride?
Bart: No, not that far from shame.
Homer: Less shame?
Bart [tenderly]: Yea.
And, of course, from the same episode: Hail Ants.
And: “I for one…”