The third one there is the most important here. This isn't comic books, because comic books largely didn't claim to be educational. Seems like a new phenomenon to me. We have truth in advertising laws for good reasons -- companies making obviously false claims about their products' educational value is one of them.
* hundreds of millions of videos
* many make fairly strong pedagogical claims
* mixed in advertising and product placement
The third one there is the most important here. This isn't comic books, because comic books largely didn't claim to be educational. Seems like a new phenomenon to me. We have truth in advertising laws for good reasons -- companies making obviously false claims about their products' educational value is one of them.