It really is striking when you stop to enumerate it just how many edutainment shows were running in the 90's. Do those still exist to the same degree?
Not a shill, just a dad with a 5yo who enjoys that I can give my kid a tablet with those apps and not have to worry about what they're watching :)
The problem is, of course, separating the good from the bad. My nephew learned a ton from YouTube (he's 8 now), but it's a lot of work for parents to ensure that the material is good and correct, and actually child-appropriate. (And his parents are both teachers, so they have a bit of a leg up on their ability to evaluate educational quality.)