Question on episode original series/brain only

[Jon Alwyn]

Can someone please help me. In a manuscript I am writing, I need to reference the episode in which an alien species had developed to the point that it merely was a brain. Am I remembering that correctly?

 

[Orac]

The Gamesters of Triskelion

 

[Forbin]

And they were such lovely colors too!

 

[1001001]

Hmmm....

Google function replicated.

Shutting down.