I thought this show was more for slow people than humourous, but it was still entertaining. My cousins laughed at every "joke" while I only found humor in about two or three "jokes."
If you think about the show psychologically, it makes sense, but the reality is nothing to ridicule or laugh about. The father had a low self-esteem and used the son to raise it, but lowered the son's. The daughter's intelligence was held back and her social esteem was hurt by her father's ridiculing. The mother was... I forgot. The infant was the most intelligent person, but was always angry and hostile because he was always ignored. The dog was neutral.