Continuity mistake: An influenza epidemic is exacerbated by a very cold windstorm. The wind is obviously created by a wind machine. In all the outdoor scenes, dust and leaves are blowing in the foreground but the trees and bushes in the background are motionless.
Bonanza (1959)
1 mistake in The Silent Killer
Starring: Lorne Greene, Michael Landon, Pernell Roberts, Dan Blocker
Ben Cartwright: You and your education.
Adam Cartwright: Education is progress! Now what have you got against it?
Ben Cartwright: I don't have anything against education - as long as it doesn't interfere with your thinking.
Mrs. Wharton and the Lesser Breeds - S10-E17
Trivia: A portion of the background music used during an outdoor scene in the town of Vallejo was later used as the theme song for "Little House On The Prairie."
Question: How could one of the three have been in prison during the murder at the barbershop? Did he have a twin?