The Vampire - S1-E4
Revealing mistake: In one scene, stock footage of a Boeing 747 flying is used to show Kolchak flying to his destination, and there is no commercial airline livery on the aircraft, just "Boeing 747." This footage was of one of the first 747's built.
The Werewolf - S1-E5
Revealing mistake: It is obviously a dummy in a woman's dress The Werewolf throws into the empty swimming pool.
Bad Medicine - S1-E8
Revealing mistake: Footage of the Diablero standing up after killing the first rich woman is re-used in the killing of the next rich woman, evident by the shot of the same curtains in the background for both murder scenes.
Horror in the Heights - S1-E11
Revealing mistake: The bulky material/block that secures the crossbow arrow shot into Miss Emily's torso can be seen under her clothing.
Revealing mistake: The footage of the traffic in front of Springfield Hospital where Helen Lynch is recuperating is recycled later in the episode.
Revealing mistake: When Kolchak closes the door to Mr. Burton's classroom, the wall shakes when the door shuts.
Revealing mistake: A set crew member's hand is seen operating the floating pen in the witch's coven ceremony.
Revealing mistake: The headless motorcycle rider's torso and arms are not in proportion to a real motorbike rider. The torso is obviously made larger to accommodate the stunt bike rider.
Revealing mistake: The pre-cut hole in the garage door is visible before and after the motorcycle busts through it.
