The Planetary Society's Director of Projects, Dr. Bruce Betts, returned to the virtual classroom at California State University Dominguez Hills from February 8, 2012 to May 9, 2012 teaching Physics 195: Introduction to Planetary Science and Astronomy. Here is an archive of all 13 classes.
He is also teaching an updated version of the the same class. Go here to learn more.
Each class is one-and-a-half hours. Just click on a session title to get to a large version of the video for that class.
If you are curious about what was covered in the class, here is the syllabus (PDF), or just see the descriptions with the classes below.