I am a huge fan of Jon Peterson's beautiful doorstop of a tome, Playing at the World, an exhaustive history of D&D, RPGs, and wargames. So, I was delighted to discover his YouTube channel. Even though he only has a few videos on it, I found them all very interesting.
https://youtu.be/_EVQsIETO_AIn "A History of D&D in 12 Treasures," Jon looks at 12 artifacts (I assume from his personal collection) that help in understanding the early development and history of D&D. It it so cool to see early correspondence between Gary Gygax and Dave Arneson, early newsletters, rules for pre-D&D games that influenced D&D, and of course, the first printed, 3-booklet edition of Dungeons & Dragons.
https://youtu.be/N74fRQkqAJEBefore there was Critical Role, HarmonQuest, D&D With Pornstars, and Wizards of the Coast's own Dice, Camera, Action, there was The D&D Radio Show. Or, there would have been if it had ever been broadcast. Back in the 1980s, TSR created a pilot for a D&D radio show that never saw air. Jon got a hold of the pilot episode. It's fascinating to ponder what RPG entertainment, now in its infancy, might be like today if it had taken hold over 30 years ago.
https://youtu.be/sQlA6oAyLXgIn this video, Jon sits down with fellow D&D history nerd, Bill Meinhardt, to go through the early boxed set editions of D&D to discuss how you can tell which printing is which.