Sonic the Hedgehog in Marge be Not Proud makes me laugh. Just take it! Take it, take it, take it, take it, take it. Take it!Favorite classic episode? I dunno, it's been a long time since I've seen them, and most of them I've seen only in syndication, so I'm probably missing out on some stuff.
I kind of like Marge be Not Proud, to be honest. I can at least say one of the weaker episodes of the classic ear is Bart's Inner Child. I dunno how to feel about that one. Bored, I guess.
There's got to be something I'm just not recalling, but I'm too lazy to go through a wiki or NoHomers at the moment.