I loved these things, major flashback. I was already on the path, but as a Computer Engineer to be, I gobbled this stuff up!
But also, I confess: I don't feel like I really learned that much from it. I already had a rudimentary Ohms law & binary logic understandings in elementary school, and most of the projects either were obvious from that premise, or were way way above my head & quasi-magical. I loved these things, they were inspirational, but I struggle to recall learning much from them.