People mostly just want the info. That said, this looks like a great piece of work.
Basically, no talking heads. That stuff should be text.
Ben Eater has it right, all content, voice over video.
It's not that I 'hate people' or whatever, depending on the content/style of the rest of it it can be fine: Clough42 for example is moving around a workshop doing physical things, so it seems quite natural when he turns to face the camera, or for the intros.
It helps that his production quality is insanely good too - for all the time spent talking about new expensive AV gear on EEVBlog, it's not great! Not because of the gear, but the refusal to do a re-take if it goes wrong - cc: sorry about the mic it gets better in a sec - editing mishaps like repetition of a shot or not removing one that was clearly intended to be, etc.
Can't complain though, I enjoy it all for free, and I'd recommend every channel I've mentioned.