Season One

Beyond the Farthest Star
Yesteryear
One of Our Planets Is Missing
The Lorelei Signal
More Tribbles, More Troubles
The Survivor
The Infinite Vulcan
The Magicks of Megas-Tu
Once Upon a Planet
Mudd's Passion
The Terratin Incident
The Time Trap
The Ambergris Element
The Slaver Weapon
The Eye of the Beholder
The Jihad

Season Two

The Pirates of Orion
Bem
The Practical Joker
Albatross
How Sharper Than a Serpent's Tooth
The Counter-Clock Incident