Certification
- Australia:PG (some episodes)
- Australia:M (some episodes)
- Canada:G (Ontario, volume 4)
- Canada:PG (Ontario/Manitoba, some episodes)
- Canada:14A (Ontario/Manitoba, some episodes)
- Canada:G (Quebec)
- Japan:G
- New Zealand:PG (most volumes)
- New Zealand:M (volume 2)
- Norway:9 (recommended rating)
- United Kingdom:PG (volumes 1-3)
- United Kingdom:12 (volumes 4-6)
- United States:TV-PG