Common Sense Note
Parents need to know that this sitcom is iffy for kids under 15 because of the frequent innuendo and implied sexual activity and drug use. Most of the teens are sexually active, and smoking pot in the basement is a regular occurrence.
The characters think and talk about sex a lot. Not too much is shown, but much is alluded to. Donna and Eric eventually have a lot of sex, and Kelso in particular is a very active teenage male.
Slapstick at most.
Mr. Forman curses quite a bit, using words like "damn," "hell," and "son-of-a-bitch."
Overall the show promotes the importance of friends and family -- even if those friends and family members frequently bicker with each other or make mistakes. That said, the show also presents pot smoking as a normal activity and doesn't bat an eye at teen sex.
Drugs / Tobacco /
"Mysterious" smoke clouds appear in the basement, and it's clear that the kids are smoking pot. Dad Red drinks beer regularly.