What are good YouTube channels for improving chess? What are good YouTube channels that help to improve our chess? 

Channels which are analyzing their own games (Blitz, standard, OTB) or discussing tactics, strategies, etc. 

I list some of these channels in the following. 

Please share your favorites. Note that here we are interested in channels with learning material not channels with plenty amount of advertisements or fun.

Channels here are ordered arbitrarily with no preferences:


IM Andrew Martin Chess Videos
John Bartholomew
Chess Network
Simon Williams
Chess Club and Scholastic Center of Saint Louis
kingscrusher
GJ_Chess


There are some other channels such as OnlineChessLessons, which are good but they are more introduction to openings. If one wants to go deep into something then have to pay for their videos but a simple blitz game analysis by IM or GM or even a normal good player can give more insight than an introduction to an opening X.

 P.S0: Notice that I'm not looking for good online resources like this question: 
Free learning material, also not only for the beginner rather for advanced players. 
I want to be strict only on YouTube channels, as the other question does not cover even the channels that I've already subscribed.
ChessExplained is the channel of IM Cristof Sielecki. Most of the videos are him thinking aloud while playing blitz, and they provide excellent insight into the mind of an IM.

IM Greg Shahade has a similar channel as well. He is a bit more entertaining and less instructional than ChessExplained.