Factual error: A scene near the beginning of the episode shows a man talking to a crowd holding a Peace dollar. Peace dollars were not in circulation until 1921, and I believe that the setting for this series is around 1880.
The Big Valley (1965)
1 factual error in season 3
Starring: Lee Majors, Linda Evans, Richard Long, Peter Breck
Genres: Western
Last Train to the Fair - S1-E30
Factual error: At the end of the episode as the train heads towards Sacramento, above in the sky are jet vapor trails streaking across the sky.
Nick Barkley: It might do you good to eat a little dust once in awhile.
Jarrod Barkley: I'm a lawyer, remember? I only eat crow.