>>Gnarly+Nd
Currently on course 2/4 in the series and it's great. Every week starts with a reading assignment from the RL book followed by a series of videos (re-)explaining stuff. The videos themselves are very nicely structured, with clear outlook and summary at the start and end of them.
Sutton himself appears in a couple of videos and there are other great guest lectures with interesting insights about applications.
Definitely a recommendation!