The Revenge of Robin Hood - S1-E16
Factual error: Little John orders the archers to "Fire" - the correct command for archers would have been either "shoot" or "loose."
Time Tunnel (1966)
1 factual error in The Revenge of Robin Hood
Starring: James Darren, John Zaremba, Robert Colbert, Whit Bissell
Continuity mistake: After prying off the lock to the storeroom with the pry bar, Doug drops it on the ground, but the next shot of him entering the storeroom shows it still in his hand.
Trivia: The same prop used as the Time Tunnel homing beacon in "The Revenge of Robin Hood" and part of an alien ship in "Visitors From Beyond the Stars" makes an appearance in this episode.