Sometimes Lily's cleavage shows a tiny bit.

Marilyn kisses some guys in some episodes.

Marilyn's cleavage shows a little in an episode.

In one episode, Lily says to Herman, "You feel so nice and cold." In a seductive way. Then touches his chest.

Herman and Lily have some sweet moments together, and we see them share a sweet kiss or two on occasion.

Except for the occasional gun that gets drawn and pointed, there is nothing serious to worry about here. Any mayhem that ensues is meant to be humorous.

None

Champagne gets served at a masquerade party & Herman wins a big bottle of wine as a prize in "Munster Masquerade" nobody is drunk.

Herman smokes a cigarette in 1 episode.

Grandpa smokes cigars.

Despite their appearances, the Munster family is more comical than scary, and are always portrayed as being friendly.