Originally posted by sonhouseThey are not the only ones.
http://arstechnica.com/science/2014/03/world-science-university-wants-to-teach-you-physics-for-free/
This is a real physics course!
Amoungst others you can find free courses at:
http://oyc.yale.edu/courses/
https://www.edx.org/
https://www.coursera.org/
https://www.khanacademy.org/
Coursera and Edx enable you to get actual university credit if you want it.
And most of them host their videos on youtube so for example you could look here:
https://www.youtube.com/user/YaleCourses
https://www.youtube.com/user/khanacademy