Do you have a 'go to' episode?

[Armus]

TOS: "The Enemy Within", "Where No Man Has Gone Before", "The Conscience of The King", "The Menagerie", "Arena" , "Errand Of Mercy", "Space Seed", "A Taste Of Armageddon", The City On The Edge of Forever", "Bread and Circuses" , "Patterns Of Force", "By Any Other Name"," The Savage Curtain" and "All Our Yesterdays" .

TNG: "Where No One Has Gone Before", "The Big GoodBye", "11001001", "Datalore", "Too Short A Season", "Heart of Glory", "Symbiosis", "Skin Of Evil", "Conspiracy" , "Where Silence Has Lease", "The Schizoid Man", "A Matter of Honor", "The Royale", "Q Who", "Up The Long Ladder", "Who Watches The Watchers", "The Enemy", "The Vengeance Factor", "Deja Q", "A Matter of Perspective", "Yesterday's Enterprise", "Allegiance", "The Nth Degree", "Power Play", "Conundrum", and "Ship In a Bottle".

DS9: "To The Death" and "For The Uniform".

 

[sbk1234]

TOS
A few of mine:
The Naked Time
Amok Time
Balance of Terror
Tomorrow is Yesterday

TNG
The Measure of a Man
Contagion
Yesterday's Enterprise
Sarek
The Best of Both Worlds
Family Data's Day
The First Duty
The Inner Light
Relics
Chain of Command
Tapestry
Parallels
Lower Decks

DS9
Past tense
The Way of the Warrior
Homefront
Paradise Lost
Trials and Tribble-ations
Time's Orphan
What You Leave Behind

VOY
Flashback
Future's End
Message in a Bottle
Relativity
Blink of an Eye
Endgame

ENT
The Andorian Incident
In a Mirror Darkly

 

[Jedi_Master]

TOS: "A Piece of the Action" or "Balance of Terror"
TNG: "The Inner Light" or "The Best of Both Worlds"
DS9 "In the Pale Moonlight"

 

[Desert Kris]

TOS: Bread and Circuses. Day of the Dove. All Our Yesterdays. A Taste of Armageddon. The Ultimate Computer. Is There No Truth...?
TNG: Encounter at Farpoint. Q, Who. Yesterday's Enterprise.

The Wrath of Khan, The Search For Spock and First Contact are my go to movies.

 

[Lowdarzz]

Another vote for A Taste of Armageddon.

I like everything about this episode. It was the first one I watched when I bought TOS on DVD and again when I bought the Blu-Rays.

 

[cultcross]

The Best of Both Worlds Part I is probably my most rewatched single episode, with other runners up being In Purgatory's Shadow, Homefront/Paradise Lost, A Taste of Armageddon, The Measure of A Man, City on the Edge of Forever and Trials and Tribbleations.

Those I really enjoy but are a bit more emotional like The Visitor, Chain of Command or In the Pale Moonlight I try to ration so I don't become bored with them.

 

[queerTrekker]

I guess if i am in the mood to be random, i would watch "Dear Doctor" from ENT, both the TOS and DS9 tribble episodes, and anything with Luxwana or Q (or read the books with those two characters).