The series is based on the family-oriented sitcom The Addams Family (1964), but contains macabre elements from the then-released The Addams Family (1991): deadly family dances, sadomasochistic acts, an antagonist arguably as abnormal as the Addams (the underwear-obsessed Normanmeyer).
Quick son, take this around to the back and burn it.
Normanmeyer Junior: Dad, they're standing on the lawn too.
Mr. Normanmeyer: That's allright, nothing a little hosing down won't cure.
The first season's closing credits features a portrait of the Addams family at the end. Then Thing pulls down a curtain, which features the Hanna-Barbara logo covered in cobwebs.