I think Chuckie and his family is Jewish, but I think the Pickles are Christian. I think they go to some of the Jewish stuff the Finsters do because of their good friendship. 3nodding
Didi's side of the family is Jewish and Stu's side is Chistan, so they celebrate both. Everyone else celebrates christmas I think except in one epesode Suzy celebrates Kwanza.
Maybe because it is a cartoon, so it doesn't have to go by fact. Anyways, doesn't Tommy have grandparents with thick accents? I think they celebrate both holidays.
Stu is jewish and his wife (cant remeber her name right now >.<wink is christan so they celebrate both. Thats just what i remember, but I could be wrong.