Space: 1999 Season 1 Episode 18
The Alphans are visited by a bizarre spacecraft, whose request for supplies hides a deeper purpose. The ship, Gwent, is found to be sentient, the attempt of a vain alien genius to live forever. Powerful, unstable and craving companionship, Gwent intends for Koenig, Helena and Bergman to replace its aged, dying creator.
Serie: Space: 1999
Episode Title: The Infernal Machine
Air Date: 1976-01-08