Microsoft has put seven videos of Richard Feynman lecturing at Cornell in 1964 online (“The Messenger Series” for the BBC, published in 1967 as The Character of Physical Law) in the form of streaming video with media extras.
- Law of Gravitation – an example of physical law
- The Relation of Mathematics and Physics
- The Great Conservation Principles
- Symmetry in Physical Law
- The Distinction of Past and Future
- Probability and Uncertainty – The Quantum Mechanical View of Nature
- Seeking New Laws
See here and enjoy.