Chess Game Commentaries
Agadmator has a huge collection of 10- to 30-minute entertaining commentaries on games by great players.
Jerry briefly explains key strategic ideas, and why some ideas would not work, in a selection of famous games.
30- to 60-minute studies on key issues such as passed or backward pawns, dealing with unexpected captures, etc. by an IM (International Master).
Aimed at younger or newer players, Mato pauses at a critical point in each game to let you see if you can spot the key move. A good collection of short, instructive videos.