The Night of Miguelito's Revenge - S4-E12
Revealing mistake: An obvious dummy floats out of the underwater coffin after West pops open the top of the coffin.
The Night of Miguelito's Revenge - S4-E12
Revealing mistake: At the beginning of the episode, as Jim West walks away from the newsstand vendor and closes the magazine, a 1967 ad for DieHard batteries ("The DieHard Fights the Common Cold") can be seen on the right-hand page of the prop magazine, in a modern sans serif font.
The Night of Miguelito's Revenge - S4-E12
Revealing mistake: Dr. Loveless' body flies out of the cannon before the cannon's blast propels him out the barrel.
The Night of Miguelito's Revenge - S4-E12
Revealing mistake: Stock footage of West and Gordon's train show it on a siding with no green foliage near it, but when West enters his private car, green bushes are seen very close to the train through the train car's open door.
The Night of Miguelito's Revenge - S4-E12
Revealing mistake: The steam-driven robot controlled by Dr. Loveless blinks as he is strangling West.
