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

Friday's Child

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