Certification
- Argentina:Atp
- Australia:PG
- Canada:PG (Manitoba/Nova Scotia, DVD rating)
- Germany:12
- Italy:T (DVD rating)
- Netherlands:AL
- Netherlands:6 (some episodes)
- New Zealand:PG
- New Zealand:M (season 9)
- United Kingdom:12
- United Kingdom:PG (some episodes)
- United Kingdom:U (some episodes)
- United States:TV-PG
- United States:TV-14 (few episodes)
- United States:TV-G (some episodes)