Samantha begins messing with the top of Sheila's hair at the dinner table by repeatedly pushing several locks of hair down onto Sheila's forehead. As a result, Sheila's hair becomes visibly parted in the center on top in several places. When the camera changes for another closeup, her hair is once again perfectly combed with no visible parts.
When Darrin returns to the dinner table, his hair is messed up. But after a quick cutaway to Samantha, his hair is neat again.
When Endora appears through a window of the room when Samantha is in on her honeymoon, the window is open/shut/open between shots.
Both Samantha and Darrin use the phrase "a real, live, house-haunting, broom-riding, cauldron-stirring witch." But everyone knows that GHOSTS haunt houses, not witches. (Bewitched even had episodes about actual ghosts haunting houses.)
After Samantha zaps Darrin a drink, he collapses with it in his hand. In the next view of him, he is in a chair and the empty glass, rather than spilling on the floor is sitting on the table with the straw still in place. This was because, in the original script, Darrin was supposed to have downed the drink after realizing Sam really was a witch. He then puts down the drink. This section was edited out for some reason.
When Samantha is moving the ashtray, Elizabeth Montgomery can be seen looking off-camera momentarily and nearly laughing.
A dark boat is off in the distance with the New York Skyline behind it, yet Samantha and Darrin are making out with normal daylight upon them.
When Samantha twitches her nose to make the table lighter light, the sound effect is missing.