Ask HN: Inspiring audio/video suggestions like these?

These are two of my favorite talks to listen to while driving, jogging, etc: Warren Buffet at Univ. of Florida: http://www.youtube.com/watch?v=4H5TjmnB3yk Ron Avitzur's Graphing Calculator Story: http://www.youtube.com/watch?v=GMyg5ohTsVY and I'm curious if anyone else has similar suggestions or favorites that can be listened to time and again?