Continuity mistake: Millicent pours hot water into her teacup and dips a tea bag into it. She doesn't drink a drop, but next shot, when she puts the cup down, we can see that it's empty. (00:18:30)
Night Gallery (1970)
1 mistake in Spectre in Tap-Shoes - chronological order
Starring: Joanna Pettet, Rod Serling, Larry Watson, Matt Pelto
Rod Serling: For those of you who've never met me, you might call me the under-nourished Alfred Hitchcock.
Trivia: The scene of the spooky castle on the rocky shore was used in episodes of "Gilligan's Island" featuring Vito Scotti as mad scientist Boris Balinkoff.