Top Ten Star Trek: The Original Series Episodes
The most intriguing episodes of the original series.
This one is a memorable episode with a spin on society in an earthly city and their own understanding of it when coming from a very different future. On the other hand, it is close to home, and one might believe it is just too easy to go so close to home.
It has a charm and possibly why it is at the top placement. Even in 2018, it is captivating, though there might be that other drawback.
This is one of my favorite episodes of Star Trek. Number one because William Shatner is hot and I love him, and I love the romance in this.
1930 is one of my favorite centuries. All the great movies and definitely the shows. Kirk is definitely great in this show. Please rate this top one. Thanks!

A light-hearted episode with the extremely cute, continuously pregnant creatures known as tribbles.

The Enterprise encounters an evil version of itself in a parallel universe. Spock sports a goatee - a symbol that continues to be used in media today to differentiate the good version from the evil one when a copy exists.
Spock should have kept the beard - it makes him look better and gave him a more "evil" Vulcan look as well. Plus, Marlena Moreau (Barbara Luna) has lived in my fantasies since I first saw this episode when I was eight.
Downright exciting episode, although as usual, Scotty (James Doohan) overplays his character.

Spock is driven by Vulcan biology to find his mate on his home planet or die. He ends up having to fight Kirk and "kills" him.
WOW, all these were good episodes! I like this one because Spock can't control what he has to do.
Shows what Spock is all about and his emotional attachment to his friends.

This episode works on a couple of levels, but the writers must have thought there was something more there since they made a movie from the original premise.
Introduces the greatest Star Trek villain of all time, a superhuman with enhanced strength and intelligence named Khan.
The Enterprise discovers genetically altered superhumans, and Kirk encounters his nemesis Khan (the inimitable Ricardo Montalban).

Matt Decker beamed his crew down to the third planet. "Matt, there is no THIRD PLANET." Matt: "Don't you think I know that? There was, but not anymore."
Decker takes command, Spock follows orders, Kirk at his best... And the music, the battle music... Enough said.
Only in Star Trek can a character turn to the camera and say, "This is a metaphor for the nuclear weapon. I repeat, THIS IS A METAPHOR," without coming off as terribly corny.
Eerily relevant when made and still holds water!

One of the best combat episodes of any series. With the Enterprise and the Romulans playing cat and mouse, it reminded me of the old WWII submarine movies.
A submarine warfare episode that tackles themes about the futility of war and xenophobia.

A two-part episode involving scenes from the original unaired pilot with the original Captain Pike and the famous dancing green girl.

The Newcomers

The stakes are very high, and then they get even higher when things get personal! The triumvirate is at their best and most professional.
A malfunction on the transporter causes Kirk to split into two parts - one gentle and one aggressive.
Trelane outdoes himself in this home base offensive from the Enterprise to the Magic Castle of the Squire. It's a little old-fashioned, but the musical taste and talent are still present. One of the favorite Star Trek episodes of all time, other than The City on the Edge of Forever, it is simple and offers a glimpse into how the past can be beautiful to remember.
Trelane also duels Kirk with old-fashioned pistols, with Kirk winning after the Mirror of Trelane is shot, revealing his machine. Plus, Trelane's godly parents call him to stop pursuing Kirk further, which shows there might always be a greater power despite the high class Trelane appears to be part of.
Real intelligent, and yes, maybe Uhura can play the musical instrument sometime, unless it was meant to be sarcasm - uncertain, a little difficult to figure out. An amazing way to see things through with this episode, with much to contemplate - old and new, past and future. Excellent job and musical taste, Trelane!
John Colicos was the ultimate Klingon in this episode. The looks on the faces of the old Organians were absolutely priceless while Kirk and Spock desperately try to muddle through a Klingon occupation and Organian indifference.
Inspirational for Stargate's episode "The Nox," which is about 90% the same plot.
Beings that move faster than the speed of light. Kirk is shown pulling his pants on in the bedroom of a woman while she brushes her hair in a negligee.
This is one of the best episodes of the original series - monster, terror, and mystery. What else could one want? It is gratifying that Kirk, the man of action, can stop, remember who and what he is, and help a poor alien creature that resorts to violence to protect her children.
Nimoy's and Shatner's performances were spectacular!
Again, history and science fiction clash, and it was a great episode.
Kirk's consciousness gets trapped in a woman intent on taking over command. In this series, women weren't allowed to be captains.