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Must…drop…pantaloons…

wait, why isn't LaBarbara babysitting Hermes

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No beer until you finish your tequila!

He could also be a stripper, like the late Earl Warren!

He likes his beer cold, his TV loud, and his homosexuals fa-laaaaaming.

It also gave us the surprisingly useful phrase "grappling with local oaf."

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Keep looking shocked, and move slowly toward the cake

They don't really talk about that, actually. Groening isn't in the commentary, but they never really address the subject of why not.

Sor-ry! Next time get your own darn corn!

There's a much later episode — one of the ones where Ned and Edna Krabappel are married — that has them going to a religious school until Edna pulls them out of it, but they're definitely shown going to Springfield Elementary a few times in the earlier seasons. They just don't really interact with the Simpson kids at…

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A headache with pictures

And one of them was Bobby Flay! *shudder*

Oberyn's spear was coated in crab juice?

And that's a lot of work for @Reposted Lt. Broccoli Comments.

Yeah, I remember the start of season 9 very clearly because it was the same year I started college, and I do remember feeling like the spark wasn't quite there. It's definitely still a lot better than what was coming, though — it had stopped being appointment tv by season 12 or 13.

Isn't that the point of "Oh Yeah" to begin with?

I always assumed "Principal and the Pauper" was inspired by Martin Guerre but in (I think) the DVD commentary they mention not having heard of the story when the episode was written.

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Better start saving now — they're very expensive!

13 in 2001 = 27 years old. Which isn't too cringeworthy. People who were 5 when it happened are just out of high school (I just had a class of seniors that included a huge GWB fanboy, so I did that particular bit of mental math to figure out if 9/11 explained it. I dunno, maybe he just has really conservative parents).