The Devil Is Not Mocked - S2-E19
Revealing mistake: Krantz's fingernails digging in to the wood flooring as he is being dragged out the door do not match the pre-scratched finger nail tracks in the floor.
Other mistake: After Malloy shoots himself his hand does not drop the gun onto the table. Instead, his hand places the gun on the table then his fingers gently shoves the gun out of his hand.
Continuity mistake: Malloy places his flashlight on the floor about a foot and a half away from the door and at an angle. When he opens the door, the flashlight is now right up against the door and directly perpendicular to it.
Continuity mistake: A brick being shoved into place attracts Malloy's attention. The mortar is not neat and tidy, wet, and the bricks are slightly askew. When Malloy turns to face the brick wall, the mortar is neat, dry, and the bricks neatly laid.
Continuity mistake: The size of the matchstick being consumed by the flame varies size as Malloy lights the candles.
Continuity mistake: The shape and number of blood spots on Malloy's left hand change instantly after dripping on him.
Continuity mistake: It is daylight at the front door before Colonel Malloy enters the haunted house, but pitch black when he opens the door and enters.
Revealing mistake: The solid brick wall bends like vinyl when Colonel Malloy touches it.
Keep in Touch - We'll Think of Something - S2-E31
Visible crew/equipment: The camera and some film crew members are visible in the reflection of the store windows as it pans along the sidewalk.
Continuity mistake: Old Man Doubleday's shotgun changes position between shots as he points it at Bradley Meredith.
The Girl with the Hungry Eyes - S3-E2
Continuity mistake: The frontal shot of David Faulkner shows the shape of the film negatives in his hand are differently shaped from the view over his left shoulder.
You Can't Get Help like That Anymore - S2-E58
Revealing mistake: The robots in the display cases at Robot-Aids, Inc. are breathing and/or moving slightly.
You Can't Get Help like That Anymore - S2-E58
Continuity mistake: The robot version of Joseph Fulton in the display case changes position of the garden shears between shots.
Continuity mistake: The desk sergeant is sometimes looking to his right at his wife's photo, then looking ahead, then back to the photo between camera shots.
Deliveries in the Rear - S2-E53
Revealing mistake: The cadaver on the dissection table is breathing.
Revealing mistake: The actor playing Sgt. Imo uses a small branch on the ground as the mark where he is to stand. He also looks down to ensure he is standing in the right place.
The Miracle at Camafeo - S2-E49
Continuity mistake: Rogan's left hand is in his pocket when he stands in front of the blind boy, but in the immediate shot after his hand is not in his pocket.
Continuity mistake: Mallory at first holds his cigar with his index and middle fingers then holding it with his thumb, index, and middle fingers in the next shot.
Continuity mistake: The mermaid drops her blanket on the boat's dock before jumping into the water, but is floating on the water when Lindemann dives in after her.
Continuity mistake: When Lindemann emerges from the boat's hold, his sailor friends are on the dock a couple of feet from each other. The next shot and the sailors are much closer to each other.