They make a lot of rules errors, so it's not necessarily a great way to learn games. Mad respect for what Tabletop has done in terms of popularizing the hobby, though.
I'm so glad you thought of this. This is precisely what I used to learn how to play a series of new board games. I now have multiple friends hooked on Catan and Pandemic.
https://geekandsundry.com/shows/tabletop/