The Night of the Watery Death - S2-E9
Continuity mistake: In the Mermaid Tavern, the abalone shell and West's black hat switch places on the table between takes. (00:02:40)
The Night of the Watery Death - S2-E9
Continuity mistake: When West is untied from the pillar, a close-up shot of his foot shows him stepping on the wooden plank that activates the force field. The next shot shows him walking on the plank, but the force field was activated before he steps on it (from a wide angle shot). (00:38:50)
The Night of the Watery Death - S2-E9
Continuity mistake: Halfway through this episode, West's hands are tied to the bedpost. He frees a hidden knife from his lower right sleeve. The close-up of his right wrist shows two rope strands binding him. When West finally gets the knife in the position to cut the rope, only one rope strand is wrapped around his wrist.
The Night of the Watery Death - S2-E9
Continuity mistake: The knife West uses to throw at the button to turn off the disintegration machine is already embedded in the button before he throws it.