Night Stalker-The Aliens kill zoo animals for their bone marrow one.
Six Million Dollar Man-The very first Steve Austin vs. a Robot episode.
Land of the Lost-The final episode of season one where they go home and are replaced by themselves from a different sliver of time.
Looney Tunes-“Feed the Kitty”
Kids in the Hall-“Bobby vs. The Devil”
Mine was “The Bishop”
You want to complain! Look at these shoes….!
I’ve heard ozymandias referred to as potentially the ‘best’ episode of any TV show ever. Since breaking bad is so highly rated and ozymandias is usually rated as the best, that is plausible. I’d rate it as the best episode of a TV drama I’ve ever seen.
Louie (TV series) - Eddie
Original twilight zone - nervous man in a four dollar room (I’m probably the only one who thinks this is the best episode though)
Workaholics - to friend a predator
1980s twilight zone - probably ‘the star’
I’d be interested in what other people think of family guy, curb your enthusiasm, seinfeld, south park,
X-Files: “Home”
The Dick Van Dyke Show: “Coast-to-Coast Big Mouth”
Sanford and Son: The Shootout
I haven’t seen much of Family Guy so I’d pick the Road to the Multiverse one.
South Park-Scott Tenorman Must Die
Seinfeld-The Postmaster General one
also for Arrested Development I’d go with the Buster-centric one of Season 4.
Nah. The best ST:TOS episode is always “The City On the Edge of Forever.”
Or “The Alternative Factor.” 
Babylon 5 - “Passing Through Gethsemane.”
Bosom Buddies - “The Road to Monte Carlo” – Tom Hanks in his first TV series. Absolutely side-splitting.
I don’t recall titles!
The Professionals - Close Quarters
Baa Baa Black Sheep - (air duel with Harachi)
The Night Stalker - The Trevi Collection
Wild Wild West - (help me out, Artemus Gordon was disguised as a near easterner and chanting ‘the power of the east,’ and ‘the power of the “west”’.)
Hawaii Five-O - ‘V’ for Vaccion (three parts)
Star Trek TOR - (Khan)
Friday the Thirteenth - Arrow of Love
Six Million Dollar Man - (Dolan’s first robot played by John Saxon)
UFO (UK production) - (first episode showing the abduction)
The Thin Blue Line - Kids Today
Bonanza - (the one where Ben was shot and holed up while the dead shooter’s son was demanding his head, I only remember Little John in that episode. Hoss was nowhere to be found.)
Macgyver - (Mac’s school homecoming and the barricade competition)
Mission Impossible (original) - (the one where Martin Landau was dressed as Adolf Hitler and gesticulating like the real Fuhrer)
Starsky and Hutch - (Christmas special with Christy MacNichol)
Highlander Series - (death of Darius)
Dark Justice - (the baseball bubble gum card)
MASH - (the 30-minute heart surgery)
SOAP - (death of Elain)
The Sopranos: Well, one of the best was the Pine Barrens episode, wherein Pauli and Christophah are lost in the woods. Another would be the one where the FBI is trying to bug Tony’s basement.
Rome: The ep where Pullo and Vorenus end up back-to-back in the arena. Also the series finale.
“SOAP-Death of Elaine”
I’d have gone with the season one cliffhanger. “I’m innocent. Innocent.”
Hilariously we picked the same Six Million Dollar Man ep. And not any Bigfoot or Mars Probe episodes.
Hey! I LIKED Lazarus!
Locked in a struggle with a mad man … FOREVER!
“But what of Lazarus. What…of Lazarus.”
Gilligan’s Island-Either The Most Dangerous Game episode (heady stuff for sort of a kids show) or the Vampire one. Particularly the dream sequence.
“I wrote you seven years ago”
“Yes well, we had to walk all the way. At the English Channel you’d take one step, come up for air, take another step, come up for air”
Darn it, you beat me to it. I think this episode, along with “Parliament of Dreams” are the two best TV episodes of any show in the depiction of religion.
Just Shoot Me!: Season 3, Episode 11
David Cross as Donnie.
Breaking Bad - (as many have mentioned) “Ozymandias”
The episode where Walt loses everything.
MAS*H - Fade In, Fade Out (the first Charles episode)
Night Court - Mac’s Dilemma (for the subplot with the dead Japanese businessman)
Simpsons - $pringfield (“I call him Gamblor!”)
Futurama - Luck of the Fryrish
South Park - Are You There G-d, It’s Me, Jesus
Buffy - Hush
Hard to choose just one for Psych!, so I’ll start it off with Not Even Close … Encounters
The Boondocks - Return of the King
Heroes - How to Stop an Exploding Man
The Walking Dead - TS-19
Drawn Together - Terms of Endearment
Avatar: The Last Airbender - The Crossroads of Destiny