Certification
- Australia:PG (most episodes)
- Australia:M (season 18 and 19)
- Brazil:Livre (original rating)
- Canada:PG (Manitoba/Nova Scotia)
- Canada:14A (Ontario, some episodes)
- Canada:G (Quebec)
- Germany:6 (some episodes)
- Germany:12 (some episodes)
- India:13
- Ireland:PG (some episodes)
- Ireland:12 (some episodes)
- Netherlands:AL
- Netherlands:6 (season 15)
- New Zealand:PG
- Norway:A (TV rating)
- Poland:12 (DVD rating)
- Russia:12+
- United Kingdom:Not Rated
- United Kingdom:15 (season 22)
- United Kingdom:U (some episodes)
- United Kingdom:PG (some episodes)
- United Kingdom:12 (some episodes)
- United States:TV-PG
- United States:TV-MA (Apple TV rating)