Why do these lecture series keep showing up on HN? It seems every month now they are re-posted. I for one have no interest reading about Physics (I dropped that major for a reason!)
I for one am interested because when I was an undergrad I couldn't grok physics, I don't know why. After I graduated I went back and found the material that was breaking my grades seemed trivial. Something I had learned between Physics I/II and graduating put the pieces in place in my brain to understand the subject. I've just never gone back to study it in depth, this sort of content is a boon for people like me.
With a professor like Feynman, you might not have.
(FWIW - the recordings marketed in the "Easy Pieces" series from the lectures are a great last minute Christmas gift.)