Sorry, I didn't mean to come across that way. I understand how you would like it, but personally I'm happy to play a video with sounds if it explains things quickly and clearly.
I watch plenty of YouTube videos but that's when I'm in a different mode. For understanding stuff I want to skim read short clear text with illustrations. Animation and video can enhance that but it shouldn't replace it.
And I never, ever want spoken voiceovers.
Off topic, but your both Andy.