[AnotherUnixGeek]

I'll probably think of some great episodes of The Twilight Zone or other shows later but these come to mind right now in no particular order:

The Simpsons - "Bart of Darkness". There were a lot of outstanding Simpsons episodes around those years - this was a flawless episode parodying "Rear Window", effortlessly dropping moments of brilliant humor. Easily the best show on TV in it's prime - today's episodes make you forget how amazingly good The Simpsons used to be.

The Wire - "Moral Midgetry". The best hour of TV drama I'd ever seen up to that point. The Wire would go on to a brilliant fourth season and a so-so fifth season, but the climax of the story of Avon Barksdale and Stringer Bell - the inability to cope with younger, hungrier competition and the setup for the mutual betrayal to come as Stringer is goaded into revealing to his murderous friend and partner that he killed his nephew - all happened in this episode.

The Sopranos - "University". Joe Pantoliano as the psychopathic Ralphie in one of the saddest episodes of TV I've seen.

[JediJones]

Either Last Exit to Springfield or Deep Space Homer are the funniest Simpsons episodes. Those should be embedded in a time capsule somewhere. The show probably peaked overall with the first 8 episodes of season 7, an incredible little string of very funny but also complex and deep episodes starting with the conclusion of Who Shot Mr. Burns and ending with the one where Homer meets his mother. It was all downhill from there, first slightly and then rapidly.