by Levi Russell
The video below is a great introduction to Public Choice economics. It's about an hour long and is delivered by Ivan Pongracic, a professor at Hillsdale College who studied under Jim Buchanan.
Here are some of the topics covered:
The Public Interest View
Precursors to Public Choice
Voting and Group Rationality
Constitutional Political Economy
At certain points, Pongracic gets a bit too ideological for my taste, but the video is still good if you ignore those bits.