Certification
- Argentina:Atp
- Australia:PG
- Australia:G (some episodes)
- Australia:M (some episodes)
- Brazil:Livre
- Canada:PG (Manitoba/Nova Scotia, DVD rating)
- Canada:G (Quebec)
- Denmark:A
- Ecuador:13+ (self-applied)
- Egypt:13+ (self-applied)
- Finland:K-18 (2005, DVD, self applied)
- Finland:K-3 (2004)
- France:Tous publics (DVD rating)
- Germany:12
- India:13
- Indonesia:13+ (self-applied)
- Ireland:12
- Ireland:PG (some episodes)
- Ireland:15 (some episodes)
- Israel:8+
- Italy:T (DVD rating)
- Japan:G
- Mexico:B (DVD rating)
- Netherlands:6
- New Zealand:PG (some episodes)
- New Zealand:M (some episodes)
- Norway:A (DVD rating)
- Philippines:PG-13
- Poland:12 (self-applied)
- Russia:6+
- Singapore:PG
- South Africa:13 (seasons 5 and 6, DVD rating)
- South Africa:PG (some episodes)
- South Korea:12
- Spain:13 (DVD rating)
- Sweden:Btl
- Thailand:13+ (self-applied)
- Turkey:G (self-applied)
- United Kingdom:PG
- United Kingdom:12 (some episodes)
- United Kingdom:U (some episodes)
- United Kingdom:15 (some episodes)
- United States:TV-PG
- United States:TV-14 (some episodes)
- United Arab Emirates:All (self-applied)