What are some other free University courses on C?

Was very happy to stumble upon Kris Jordan's free Comp Sci 211 lectures from UNC [0] just now and curious if there are others out there? I am trying to learn C... I have been frustrated watching some of the more popular "learn C programming" videos on YouTube and was very pleased to discover this gem of a playlist. It looks like all of the lecture points from an entire university course broken down and compiled into a single playlist. Just curious if anyone knows of any other great resources hiding on YouTube or elsewhere? Thank you! [0] https://www.youtube.com/watch?v=zGArLWTHWRw&list=PLKUb7MEve0TjHQSKUWChAWyJPCpYMRovO&index=1