My 8 yo DS watches
Ben 10
Pokemon
Spongebob
Monsterquest
Phineas & Ferb
We have cartoon network blocked on the TV and so he records Ben 10 and Pokemon and I type in the password. I decided these two shows are ok, but the kids only get 1 hour of TV a day (except movie night) and so he only chooses these a couple times a week.
I'm actually watching Phineas & Ferb right now and I'm the only one awake

I love this show!