Youtube series about American coins

Just discovered this:
https://www.youtube.com/playlist?list=PLD7DFBACF97AC3356

A privately-made Youtube series about various prominent American coins. Very informative and entertaining, although I'm not sure how accurate any values quoted are since the series is from 9 years ago. Pity the series seems to have been abandoned after 12 episodes, I would have loved to see episodes about earlier US coins and maybe even classic commemoratives.

I'm sure some of you, especially US coin collectors, have already seen/heard about these, but I'd love to know about any coin collecting info channels on Youtube that aren't just unboxings or garage sale finds or metal detecting.