Episode 1 The Man Trap Episode 2 Charlie X Episode 3 Where No Man Has Gone Before Episode 4 The Naked Time Episode 5 The Enemy Within Episode 6 Mudds Women Episode 7 What Are Little Girls Made Of? Episode 8 Miri Episode 9 Dagger of the Mind Episode 10 The Corbomite Maneuver Episode 11 The Menagerie (1) Episode 12 The Menagerie (2) Episode 13 The Conscience of the King Episode 14 Balance of Terror Episode 15 Shore Leave Episode 16 The Galileo Seven Episode 17 The Squire of Gothos Episode 18 Arena Episode 19 Tomorrow Is Yesterday Episode 20 Court Martial Episode 21 The Return of the Archons Episode 22 Space Seed Episode 23 A Taste of Armageddon Episode 24 This Side of Paradise Episode 25 The Devil in the Dark Episode 26 Errand of Mercy Episode 27 The Alternative Factor Episode 28 The City on the Edge of Forever Episode 29 Operation: Annihilate!

Episode 1 Amok Time Episode 2 Who Mourns for Adonais? Episode 3 The Changeling Episode 4 Mirror, Mirror Episode 5 The Apple Episode 6 The Doomsday Machine Episode 7 Catspaw Episode 8 I, Mudd Episode 9 Metamorphosis Episode 10 Journey to Babel Episode 11 Fridays Child Now Playing Episode 12 The Deadly Years Episode 13 Obsession Episode 14 Wolf in the Fold Episode 15 The Trouble With Tribbles Episode 16 The Gamesters of Triskelion Episode 17 A Piece of the Action Episode 18 The Immunity Syndrome Episode 19 A Private Little War Episode 20 Return to Tomorrow Episode 21 Patterns of Force Episode 22 By Any Other Name Episode 23 The Omega Glory Episode 24 The Ultimate Computer Episode 25 Bread and Circuses Episode 26 Assignment: Earth

Episode 1 Spocks Brain Episode 2 The Enterprise Incident Episode 3 The Paradise Syndrome Episode 4 And the Children Shall Lead Episode 5 Is There in Truth No Beauty? Episode 6 Spectre of the Gun Episode 7 Day of the Dove Episode 8 For the World Is Hollow and I Have Touched the Sky Episode 9 The Tholian Web Episode 10 Platos Stepchildren Episode 11 Wink of an Eye Episode 12 The Empath Episode 13 Elaan of Troyius Episode 14 Whom Gods Destroy Episode 15 Let That Be Your Last Battlefield Episode 16 The Mark of Gideon Episode 17 That Which Survives Episode 18 The Lights of Zetar Episode 19 Requiem for Methuselah Episode 20 The Way to Eden Episode 21 The Cloud Minders Episode 22 The Savage Curtain Episode 23 All Our Yesterdays Episode 24 Turnabout Intruder