The Night of the Skulls - S2-E13
Character mistake: There are seven mourners dressed in black surrounding Gordon's casket - three on each side and one by the funeral officiator (who is the disguised Gordon). Later in the scene when West is talking to the disguised Gordon, Gordon says, "How do you like that - six mourners..." (00:05:20 - 00:07:10)
The Night of the Tottering Tontine - S2-E16
Plot hole: They said they couldn't leave the room because the door wouldn't open and then they all went to their rooms. How did they get out?
The Night of the Deadly Bed - S1-E2
Continuity mistake: In this second episode, West's chest is clean shaven, whereas in the previous episode, the pilot, his chest is very hairy.
The Night of the Plague - S4-E24
Other mistake: In the last fight scene, West runs uphill from the cave entering the scene from the most east side of the screen. There is a bad guy on the ground to West's right side as West is running uphill. The villains chase West, but their shot shows them entering the same scene from the middle of the screen with the guy on the ground on their left side.
The Night of the Pelican - S4-E13
Deliberate mistake: After Jeremy Pike drops the box in front of the firing squad and it begins to emit smoke, the wind blows the smoke to the right. The actors playing the soldiers in the firing squad then move themselves into the smoke and begin coughing and choking from it.
The Night of the Big Blast - S2-E4
Other mistake: After Artie and Mr. Peters leave the Fortune ladies at their table, Artie continues walking even after the Mardi Gras mask he is wearing falls off.
The Night of the Deadly Bed - S1-E2
Revealing mistake: Electrical sparks between the wheels and track rails are visible under the coal tender of West's train as it rolls, showing the train is an electric model.
The Night of the Firebrand - S3-E2
Revealing mistake: Dust is kicked up and tire tracks from the camera vehicles filming the chase scenes are obvious.
The Night of the Firebrand - S3-E2
Factual error: A modern warehouse-type structure is seen in the background as West rides into Fort Savage.
The Night of the Firebrand - S3-E2
Factual error: The amount of explosives detonated in the wagon should have blown it to toothpicks, not left intact with just the canopy blown off.
The Night of the Kraken - S4-E6
Factual error: West and Artie are trying to move a cabinet from the wall. A closeup shot shows West's left hand entering from the right side of the shot to press a button that allows a secret panel to open. Unless West twisted his left hand 180°, then him pressing the button as shown is not possible.
The Night of the Bubbling Death - S3-E1
Revealing mistake: The arms of the unconscious bad guy West drags by the feet should be dragging above the shoulders, not almost parallel to his body.
Continuity mistake: "Night of the Bubbling Death": Artemus tosses just one bottle grenade at the pursuing posse of bad guys. In the next shot, however, multiple explosions go off all at the same time in a straight line across the road. (00:14:00)
The Night of the Deadly Blossom - S2-E25
Continuity mistake: When Barclay hangs the bone hatchet back in its place, the outline on the wall supposedly left by the item differs significantly from the artifact itself. (Most noticeable is the upper end: the outline has one long curled tip, but the actual hatchet has two short prongs there.) The outline was apparently drawn without the prop, or from a different prop altogether. (00:12:05)
The Night of the Skulls - S2-E13
Factual error: Fenlow begins shouting about "one nation, under God, indivisible." This series is set in the 1870s. The Pledge of Allegiance, from which these lines are taken, wasn't written until 1892. And the words "under God" weren't added until 1954. (00:46:55)
The Night of the Skulls - S2-E13
Continuity mistake: West crashes through the French doors, breaking out the center section and leaving a partial framework on either side. In the next several shots, the center support and one broken frame reappear and disappear repeatedly. (00:02:30)
The Night of the Man-Eating House - S2-E12
Continuity mistake: Near the end, when they confront Liston Day outside the house, West and Gordon are standing close together in all the frontal shots, but several feet apart in all the reverse angle views. (00:45:30)
The Night of the Watery Death - S2-E9
Factual error: The coin Artemus hands West is a Morgan silver dollar. It's no coincidence that the actor's thumb covers the date on the coin in the inserted close-up. The series is set during Grant's presidential term in the early 1870s, and Morgan dollars weren't minted until 1878, after Grant had left office. (00:09:40)
The Night of the Poisonous Posey - S2-E7
Continuity mistake: The bad guys throw an unconscious West down a chute into the ice house. He goes in with his arms at his sides, then slides with his arms above his head, and finally lands with both hands folded over his stomach - all while remaining unconscious. (00:30:30)
The Night of the Eccentrics - S2-E1
Visible crew/equipment: West walks through the gate into the amusement park and twice passes very visible truck tire treadmarks in the dirt street. (00:09:30)