The Starlost: Season 1

The Beginning

1h 36min - "The Beginning" and "The Goddess Calabra" episodes see Devon (Keir Dullea) sentenced to death for heresy for claiming that his people actually live on a huge spacecraft. After avoiding death, Devon, Garth and Rachel visit a biosphere populated entirely by men.

The Return

1h 36min - "The Pisces" and "Farthing's Comet" episodes see an exploration return after a 10-year journey, but due to time dilation 400 years have passed (like in Interstellar), while a scientist decides that flying through a comet's tail is a good idea (for science). It is not.

Deception

1h 34min - In "Mr. Smith of Manchester" and "Gallery of Fear" the trip enter a mysterious high-security biosphere with a power-mad ruler, while later a super computer tries to trick them to become autonomous.

The Alien Oro

1h 35min - In "The Alien Oro" and "The Return of Oro" an alien craft has crashed into the Ark and is pilfering it for spare parts, while later Oro returns... as commander of Earthship Ark.

The Invasion

15h 15min - In "Astro-Medics" and "The Implant People" a medical ship comes to the aid of Devon but is distracted by aliens, while in another sphere a despotic ruler controls people through pain administered with implants.

And Only Man Is Vile

Circuit of Death

Gallery of Fear

Mr. Smith of Manchester

The Alien Oro

Astro-Medics

The Implant People

The Return of Oro

Farthing's Comet

The Beehive

Space Precinct

God That Died

People in the Dark