NOTE:Due to the sizable nature of the page, and the fact that it will keep growing, please try to keep them in alphabetical order by series on this page so it doesn't delve into chaos and confusion.
Alright, I guess I'll kick this off, and only fitting that it, like most things 'round these parts, starts with Buffy the Vampire Slayer. I know this is gonna come across as a weird choice, but "Restless" is probably one of the funniest episodes of anything I've ever seen, does an amazing job unearthing the character's fears, neuroses and desires, and above all is one of the few Dream Sequences I've seen on TV that actually feels like a dream, with its random scene transitions and stilted dialogue but otherwise normal feel. Moreover, it's probably as experimental as any show's going to be getting in the foreseeable future. —Wack'd
Forgive me for taking a double-shot here, but I also feel the need to mention The Adventures of Pete & Pete's "Apocalypse Pete", the first episode of the show I ever saw. Not only does it perfectly encapsulates not only the show's devotion to taking its silliness seriously (it features a car race where one of the competitors is a remote control toy), but as a kid who didn't have the strongest relationship with his dad growing up due to being kinda off, it—like so many episodes of the show—speaks perfectly to the sort of feelings that can evoke. —Wack'd
Every single 25th of December I take time out to watch both Christmas episodes of Mystery Science Theater 3000 back to back. The riffing on both Santa Claus Conquers the Martians and Santa Claus 1959 is constantly on the ball and razor ship and ensures plenty of laughs, but the host segments themselves have moments that are surprisingly very touching. From the opening of the former where Joel and the bots go over their Christmas lists to the end of the latter where Mike is pleasantly surprised to see it snowing in outer space, they're the perfect way to end the holiday.
If there was a great Very Special Episode, it has to be the Full House episode "The Last Dance". The show's dealing with death is well-handled, Jesse and Michelle's reasons for hiding their feelings well-motivated yet tragic and the setup of the sad scenes are just great. The jokes are funny too, and the whole episode has such a heartwarming sendoff.
No entry on great television would be complete without mentioning Firefly's Out of Gas. The episode is perfectly paced, amazingly acted, and of course, superbly scripted. The whole thing nails everything great about Firefly in one awesome episode, and showcases one of Nathan Fillion's finest performances. It is an exquisite episode, and one of the finest pieces of television ever put to film.