Contrary to popular belief, The Munsters were not the first couple on TV to share a bed. It was real-life couple Mary Kay Stearns and John Stearns on their show Mary Kay and Johnny (1947) in the late 1940s.
When is that silly bird going to get girls off his mind?
The Raven: Nevermore, nevermore.
The Munsters regard their niece Marilyn (who looks like the ideal beauty of non-monster people) as ugly and deformed, yet everyone else in the town of Mockingbird Heights basically looks like Marilyn. The Munsters also watch movies and regard then-popular stars such as Frank Sinatra and Rock Hudson as ideal men, and Grandpa's beauty potions always conjure up a beauty who looks something like Marilyn. Shouldn't their concept of beauty be horrible monsters, in accordance with the premise that Marilyn is an ugly duckling? Nor do the Munsters seem to be aware that they look radically different from non-monster people, despite interacting with them on a daily basis.
The episode titles are shown on screen following the opening credits sequence. Even in modern sitcoms, this is rare.