Thank you very much for your feedback!

I'll think about supplemental materials, it's an interesting idea....

And I am definitely planning to create original content. I have just started working on my own video series about rationality - http://lumiverse.io/series/orangemind. Right now I'm working on them alone, but in the future I would love to assemble a team. And it's possible that I'll recruit other video creators as well.

I am also very interested in producing series about hard sciences, it's one of my major goals. I will start CS and programming, and then possibly do math and physics. But that's a more of a long-term thing.