A Grammar of Systems (series, 2015-2017) – YouTube

via Peter Jones

playlist (deliberately broken link otherwise it posts the video):

https://www.youtube.com/

playlist?list=PLT-vY3f9uw3DeVTbNWmRuovh00appA-la

channel:

https://www.youtube.com/channel/UCMFRHxffBlmapWkdvI2RpEg