In the scene where Darrin and Samantha go to dinner with Darrin's ex, his ex's hair goes from curly when they are sitting down at dinner, to straight when they are asking Satchel to decide. See more...
Jack dreams that he goes on the talk show Late Night with Conan O'Brien naked. The probable reason that it's Conan's show is that Conan O'Brien used to be a writer for Saturday Night Live. Also, Will Ferrell's previous appearances on Conan's show have always had him dressed ridiculously; once as a Birthday Leprechaun, once as Robert Goulay, etc. It was just a matter of time before he wore nothing at all.
After Isabel tells Jacks that she's a witch, he asks, "Am I gonna get pregnant? Because I cannot get pregnant right now." Endora cast a spell causing Darrin to feel the same pregnancy symptoms that Samantha was feeling in an early episode of the original series, "Bewitched".
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