You should familiarize yourself PBS Digital Studios. They have several high quality Youtube channels. CrashCourse, Space Time, Infinite, etc. are much better at using the Internet medium and specifically video for learning than Khan Academy, with high production values for a Youtube series though they have different objectives. Khan Academy is like a traditional classroom via the web.

The PBS shows are bingeworthy. Seriously, take a look at SpaceTime. It's so much better than anything the Science or Discovery channel puts on. And I've binged on several topics in Crash Course

The USFG is "an execution company," not an "innovation company." If we had diverted 50% of CPB's budget a decade ago to funding "new technologies for public interest educational programming," it's very unlikely it would have turned into Wikipedia or Khan Academy. PBS is an extremely successful program whose benefits don't show any signs of slowing down. Eventually, it will evolve or be replaced by something better, but there's no reason to get hasty with that. I watch Nova pretty regularly on my appleTV. They don't seem to be anywhere near technological obsolescence just yet.

PBS is actually in a growth industry: financing high-quality original video content. Take a look at what Netflix and Amazon are investing in that direction, for example.

My kid watches PBS shows frequently. She has never watched TV in her life. But she knows PBSkids.org and asks for it by name.

Yes, we should all get our under ten year old kids a computer and let them loose on Wikipedia. I'm sure they'll learn tons of stuff and never get into any trouble whatsoever.

There's a place for things like PBS. It's inexpensive, it's curated, and it's hard to mess around with.

Are those resources as easily accessible to people who are not privileged? What about the children's shows? Are those easily accessible to underprivileged people's televisions?

Cause it's a stretch for them to freely publish online using the same model?

Cause they're already doing that.