Star Trek The Original Series: Episodes worth a watch!

My Top 6 TOS Episodes:

• The City on the Edge of Forever 
• The Doomsday Machine 
• Mirror,Mirror 
• The Enterprise Incident 
• Balance of Terror 
• Space Seed (the Khan episode!)

Season 1:

• The City on the Edge of Forever 
• Errand of Mercy
• The Devil in the Dark
• This Side of Paradise 
• Space Seed (the Khan episode!)
• Arena
• The Squire of Gothos
• Balance of Terror 
• The Menagerie 1 & 2
• What Are Little Girls Made Of? 
• The Enemy Within
• The Naked Time
• Where No Man Has Gone Before 

Season 2

• Assignment Earth
• Bread & Circuses
• The Ultimate Computer 
• A Piece of the Action 
• The Gamesters of Triskelion
• The Trouble With Tribbles
• Wolf in the Fold
• Obsession 
• The Deadly Years
• Journey to Babel (the Sarek episode)
• I Mudd
• The Doomsday Machine 
• Mirror,Mirror 
• Amok Time

Season 3

• All Our Yesterdays 
• Let That Be Your Last Battlefield 
• Elaan of Troyius
• The Tholian Web (featuring the original USS Defiant)
• Day of the Dove (Klingon episode)
• Spectre of the Gun
• And the Children Shall Lead 
• The Enterprise Incident