Many people on this sight would know that I'm a huge fan of Futurama (the avatar and sig probably gives that away :P), so I thought it would be about time to do a top-25 episodes list.
"The Lesser of Two Evils" (Season 2)
This memorable episode introduced Flexo, arobotidentical to Bender save for the metal goatee. Fry is convinced that Flexo is "the evil Bender", and tries to expose him. This episode seems to be quite influential; it even inspired Roll Call threads on the GS AU board.
"Space Pilot 3000" (Season 1)
The very first episode of Futurama, "Space Pilot 3000" begins with a memorable introduction that to this day remains a highlight of the series. It also features a few great characters that don't make many appearances outside this episode, such as Mr. Panucci and Leela's ex-boss, Ipgee.
"Bender Gets Made" (Season 2)
A shamefully underrated episode, "Bender Gets Made" introduces the Robot Mafia, and that reason alone is enough to secure it a position in the top 25. Clamp-Clamp KABAMP!
"Parasites Lost" (Season 3)
This episode tends to appear in many top 5 lists, and rightly so. The episode's content (Going into Fry's body to extract parasites) is wacky and bizzare; on of the things that Futurama does best. It also the episode that really kicks off the popular theme of Fry and Leela's relationship, but since that isn't really my cup of tea, I won't go into that. :)
"Law and Oracle" (Season 6)
The basic plot of this episode sounds rather bad on paper; Fry becoming a police officer. However, it was managed to be pulled off quite sucessfully. It was given a sci-fi twist to make it relevant to the 31st century, and made great use of URL, the smooth robot cop.
"Amazon Woman in the Mood" (Season 3)
This bizzare episode carries many memorable quotes and Brannigan shenanigans. The politically incorrect jokes work perfectly on the planet inhabited by giant women. However, what makes this episode stand out is the fantastic restaurant scene.
"War is the H-Word" (Season 2)
Another Brannigan cl@ssic, this episode is set in a war zone. Seeing the impractical weapons used in the 31st century, as well as the Star Wars-like training they perform, make this quite a funny episode. Lastly, the out-of-character lines from Kif are quite unexpected, and downright hilarious. "Mix these mixed nuts, I see two almonds touching!"
"Hell is Other Robots" (Season 1)
This episode introduced one of the most memorable minor characters on the show; the Robot Devil. This episode also proves that when a musical is done right, it can make the episode fantastic. Thankfully, the Robot Devil's first appearance was not his last.
"The Day the Earth Stood Stupid" (Season 3)
This episode invloves everyone on Earth, except for Fry, becoming insanely stupid, thanks to a race of floating brains. This kind of absurdity is what makes the show so brilliant, and the writing in this episode is top notch.
"Time Keeps on Slipping" (Season 3)
Time travel is cool, but what could be cooler than uncontrollable time travel that skips forward randomly, leaving everyone with no memory of what happened during the skip? Nothing, that's what. Also, it involves mutant-atomic-supermonster basketball players. 'Nuff said.
"A Flight to Remember" (Season 1)
This episode is a parody of the Titanic, and it does quite a fantastic job of it. There are several subplots in the episode, one of which introduces Amy's parents, who are a rather strange couple. Easily the best episode of Season 1.
"Overclockwise" (Season 6)
A farily recent episode, "Overclockwise" involves Bender becoming superintelligent after being overclocked. Aside from having an awesome basic concept, one thing in particular makes this episode unique. The most annoying character on the show, Cubert, was actually very well used here, and actually made the episode better.
"Insane in the Mainframe" (Season 3)
This episode is set in a robot asylum, and introduces Roberto, who is arguably the best character on the show. His shear craziness and mental instability make this episode very entertaining to watch.
"Brannigan, Begin Again" (Season 2)
Zapp Brannigan and his assistant Kif are fired from the DOOP army and are employed by Planet Express. The plot isn't what makes this episode great, it's the ridiculously golden lines that come out of Zapp's mouth. This episode is, without a doubt, the most quotable one in the series. "If I don't survive, tell my wife... hello."
"Jurassic Bark" (Season 4)
This episode is about Fry's past, and uses flashbacks to tell a simple, yet effective story. This episode is famous for being surprisingly sad, which for a cartoon, is an impressive feat.
"The Prisoner of Benda" (Season 6)
This is the kind of episode that takes nerdiness to the extreme. It uses the science-fiction cliche of mind-switching, and takes it to the extreme, creating a highly entertaining plot with a resolution that is so absurdly complex, yet makes absolute sense.
"The Farnsworth Parabox" (Season 4)
Seeing characters interact with themselvesnever fails to be amusing, which is why an episode about entering a paralell universe is such a good idea. The Professor is my favourite character, and this episode really brings out the best of him. "Getting the brain out was the easy part. The hard part was getting the brain out!"
"Love and Rocket" (Season 4)
This episode sounds rather chessy on paper. It's about Bender beginning an awkward romance with the Ship, and getting sick of "her" almost immediately. But the more a watch this episode, the more I like it. The disturbing Bear "Hospital", the shelfish attitude of Bender, everything in this episode comes together in an awesome package. And no-one could be happier unless it was Valentines day. What, it was? HOORAY!
"Cold Warriors" (Season 6)
Often, I feel like I'm the only one who really likes this episode. It takes the clever idea of everyone freaking out over a common cold like it's the black plague, and turns it into a very funny episode. This episode also uses flashbacks to tell an interesting story, which is good, because it means we get to see more of Fry's ignorant parents.
"The Luck of the Fryrish" (Season 3)
Yet another episode about Fry's past, this one is similar to "Jurassic Bark" in that it has a surprisingly emotional ending. But unlike that episode, "The Luck of the Fryrish" is uplifting rather than depressing. this episode is also great because of the unusual family that Fry has; his sport-obsessed mother, and his ultra-patriotic father are both fnny characters that are seldom used.
"The Devil's Hands ae Idle Playthings" (Season 4)
For a long time, this was thought to be the very last episode of Futurama, ever. "The Devil's Hands" is the very last episode of the original run, and is a bloody fantastic episode. Once again, the Robot Devil comes along and makes the episode even better. From the epic opera to the constant discussion of what defines "irony", this was a fantastic tempory end to the series.
"Roswell that Ends Well" (Season 3)
This episode is clever, complex, hilarious, and mildly disturbing. The crew go back in time and discover that they are the aliens who crashed at Roswell in 1947. However, one particular event makes the entire series quite confusing; Fry accidentlly killing his Grandfather, and then getting his Grandmother pregnant. :| That's right, Fry is his own grandfather, and this well-written episode reserves the right to be one of the most popular episodes in the series.
"The Late Philip J. Fry" (Season 6)
After a line of slightly disappointing episodes at the beginning of Season 6, "The Late Philip J. Fry" came along. Not only is it without a doubt the best episode of the new run, but also one of the best of the entire series. It's basically about Fry promising to not be late for his date with Leela, but then accidentally going 7000 years into the future using the Professor's time machine. I won't spoil any more of it, but every moment of the episode is pure gold. This episode also reminds me why I don't use IGN... (7.5?!?! :evil: )
"Future Stock" (Season 3)
This fantastic episode is similar to "Brannigan, Begin Again" in that it has so many hilarious quotes. Too many to count in fact. And it's all thanks to Steve Castle, otherwise known as "That guy" or the "80's guy", who makes every single scene memorable. "Anyone here who's a sheep is fired. Who's a sheep?"
"The Why of Fry" (Season 4)
My all-time favourite episode of Futurama, is "The Why of Fry." It's a hilarious sequel to "The Day the Earth Stood Stupid" and involves everything I could possibly want in an episode of Futurama: crazy sci-fi, floating brains that want to destroy the universe, time travel, shippiness, and a revelation that states why Fry actually came to the future. It will take quite a lot to top this episode!