Funny, playful, appropriate & educational Tv shows for 2-4 years olds?

I help take care of toddlers at my church and Me and my friend always try to entertain them. Usually we let them take turns on using our IPhones but all of them want to use the phones at once. So I thought of the idea to let them watch tv shows on YouTube. But I'm not so sure of what some good(shows that will keep them entertained for a good 15 minutes) shows for them to watch.

My son is almost 3 and his favorite shows are: Ni Hao Kai Lan, Umi Zoomi and Dora the Explorer.

I don't like him watching TV too much, but when he does, these shows are great and he's always repeating when they ask him to say something. Umi Zoomi especially (teaches kids numbers).

My daughters show is pocoyo… And super why

The Last Temptation of Christ.

Don't use tv and phones to entertain them the whole time.

Play doh, games, blocks, cars, etc

Clifford, Word World, Blues Clues, Dora, Curious George, Mickey Mouse Club House, Seasame Street

Mickey Mouse Clubhouse, Team Umi Zoomi, Little Einsteins, Dora, Diego, Super Why

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