The current Coursera course's videos are pretty unadorned, but he's not using a physical chalkboard any more. I also found that for most of them I can use the subtitles instead of the audio and play them back about about 2x speed.
That alone would be a big help. Reading his chalkboard work is hard.
I wrote up the course a few years ago for easy reference. I need to update these notes it as I have about a year's worth of (minor) typos that people have pointed out [which is hugely appreciated], but in general they seem well received.