Didn't they realize?
I'm new to this board, so I don't know if it's been discussed before.
I love The Munsters, but there was one thing I never understood. They always call Marilyn the plain one, or the ugly duckling, and how in the world is she ever going to find a husband with looks like that? I know that's the running joke, but didn't Herman, Lily, and Grandpa realize that the ENTIRE WORLD looked like Marilyn? If they felt that way about her, certainly the men she dated would be considered "plain" and "ugly" in their eyes. With all the references they make to current celebrities of the day (Steve McQueen, for example), they seem to be accepting of the outside world.
I remember one episode where there was a scene in Marilyn's bedroom. The room was completely "normal" - clean, regular furnishings, no cobwebs or holes in the walls. But if she was a Munster by blood, wouldn't her room look exactly like the rest of the house, since she was content to live in the broken down parts of the house?