Season 1
- "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 2
- "The Pirates of Orion"
- "Bem"
- "The Practical Joker"
- "Albatross"
- "How Sharper than a Serpent's Tooth"
- "The Counter-Clock Incident"