Cosmos: Season 1, Episode 8: Journeys in Space and Time
Starring: Carl Sagan, Jaromír Hanzlík, Bob Hevelone, Bill Grant, Jonathan Fahn, Jean Charney, Alan Belod
Length: 60 minutes
On Air Date: 16 Nov 1980
Cosmos: S01E08 Description: Carl Sagan explains scientific concepts like relativity and examines the possibility of time travel.