Certification
- Argentina:13
- Australia:PG
- Australia:M (DVD rating, disc 8)
- Brazil:14
- Canada:PG
- Canada:G (Quebec)
- Finland:K-18 (2007, self applied, DVD)
- France:Tous publics
- Germany:12
- Germany:6 (some episodes)
- Germany:16 (two episodes)
- Japan:R
- Netherlands:AL
- New Zealand:M (some volumes)
- New Zealand:PG (some volumes)
- Norway:7 (Netflix self-rating)
- Norway:16 (video rating)
- Philippines:13+ (self-applied)
- Poland:12 (self-applied)
- Singapore:M18
- South Korea:15 (2018)
- Spain:A
- Spain:7 (Netflix self-rating)
- Sweden:7+ (self-applied)
- Turkey:13+ (self-applied)
- United Kingdom:PG
- United Kingdom:12 (some episodes)
- United Kingdom:15 (1985-1994)
- United States:TV-14
- United States:TV-MA (IFC Rating)
- United Arab Emirates:13+ (self-applied)