The Night of the Colonel's Ghost - S2-E24
Continuity mistake: The balcony railing is intact above the column post where West ties his horse. When West returns to his horse to leave, the railing post is detached and falling away from the balcony. (00:02:55 - 00:05:35)
The Night of the Surreal McCoy - S2-E23
Continuity mistake: When West is pulling the string to shoot the gun, we can see under both knees his pants are covered in dirt. As he runs to enter the Saloon, the front camera shot shows no sign of dirt. (00:44:10)
The Night of the Deadly Bubble - S2-E22
Continuity mistake: When West and Dr. Pringle back up to the steel door to escape, West is about three feet in front of it. One of the villain's henchmen bursts in, saying, "hold it." The next shot and West is about eight feet away from the door and the henchman.
The Night of the Deadly Bubble - S2-E22
Continuity mistake: Dr. Pringle and West back up to a steel door to escape from the room and West is behind a table with lab equipment on it. A henchman charges in, gun drawn on West. The next instant shot shows the table has moved several feet to the viewer's left, presumably to make room for the impending fist fight West will have with the bad guys.
The Night of the Big Blast - S2-E4
Continuity mistake: Halfway between the opening credits and first freeze frame, Gordon and Ms. Lily Fortune are seen entering the private train car in the dark of night, but the shot before their entrance is of the front of the private train car at twilight. That shot of the train car also shows a backwards number 3.
The Night of Miguelito's Revenge - S4-E12
Continuity mistake: As Jeremy Pike holds the glass of brandy, it changes position from being up to down, then up again.
The Night of the Returning Dead - S2-E5
Continuity mistake: In the barn, when Artemus jokes about "smoked ham," he and West are standing within inches of each other. Then the shot cuts to a wider angle, at which point they're several feet apart. (00:21:20)
The Night of the Big Blast - S2-E4
Continuity mistake: The large black straps hanging off the sides of Dr. Faustina's medical table disappear when West and Gordon burst into the lab. (00:44:00)
The Night of the Raven - S2-E3
Continuity mistake: West and Gordon are ordered to sit on the floor to talk to the diminutive Dr. Loveless at eye level. In all the two-shots, their shoulders are touching. In all the wider angles, they're sitting a foot apart. (00:09:05)
The Night of the Returning Dead - S2-E5
Continuity mistake: It's just past nightfall when the townspeople enter the courthouse. They aren't there more than half an hour, yet it's daylight when they emerge. Then a shot from inside shows that it's night again. (00:28:30 - 00:33:30)
Continuity mistake: "Night of the Bubbling Death": West uses a glass cutter to retrieve the US Constitution, which was lying flat under a covering sheet of glass. But when he reaches in and pulls the document free, it is no longer flat, but is rolled up. (00:36:15)
The Night of the Skulls - S2-E13
Continuity mistake: West's sword fight ends when his opponent falls through a window after dropping his weapon. In the next shot, the dropped blade has moved several feet to the center of the floor, and West's sword has vanished altogether. (00:30:00)
Continuity mistake: "Night of the Bubbling Death": The dust left on West's jacket after the fight changes patterns several times, then disappears altogether when he enters the building. A shot of his feet shows us that his formerly dusty boots also polished themselves. (00:04:00)
The Night That Terror Stalked the Town - S1-E10
Continuity mistake: West pulls a gun on Artemus and places it just behind his head. In the next shot, though, West is standing two feet away and the gun is nowhere near Artemus' head. (00:45:30)
The Night of the Man-Eating House - S2-E12
Continuity mistake: West tosses a small grenade at the French doors. We see it hit and explode without breaking a single pane or crosspiece. It just makes smoke and blackens the surface. After a shot of West and Gordon, we cut back to the door and it's now a broken ruin with no glass and the wood framing destroyed. Delayed action bomb? (00:13:00)
The Night of the Janus - S4-E18
Continuity mistake: In the first boxcar scene, the train is shown standing among brown dirt and dead brush with the trees far off in the distant. When West opens the door to leave, there is a tree right in front of the door.
The Night of Montezuma's Hordes - S3-E8
Continuity mistake: West has a different hairstyle as it is parted down the middle when he is fighting outside the Nugget Saloon. In the inside fight and throughout this episode, there is no part in his hair - with the only exception of this outside fight. (00:13:30)
The Night of the Glowing Corpse - S1-E7
Continuity mistake: Near the end of the episode when West walks into the mansion where the meeting is behind held, just as he enters, Lt. Armand Renard can be seen talking to Artemus at the bottom of the staircase, but Renard died earlier in the episode. They obviously filmed this scene at the same time as the first scene, but missed that continuity error in the editing. (00:46:40)
The Night of the Raven - S2-E3
Continuity mistake: Dr. Loveless' henchmen remove Artemus' leg chain. But a few scenes later, he's shown asleep in a chair, and the chain is back around his ankle. (00:28:35)
The Night of Miguelito's Revenge - S4-E12
Continuity mistake: When West and Pike pour a drink for "absent friend" Arte, the glass is placed between a newspaper and a silver dish. In the following close-up, the paper and dish have disappeared and the glass sits alone on the table. (00:49:50)