For related lectures on Game Theory, see Lectures 1 to 5 of Experimental Economics 2012 - Video Lectures corresponding to these were stored on my personal website as: Exp Econ 2012 - these should be uploaded to YouTube at some point.
L6: Game Theory - Video lecture explains decision trees, how to make them, how to use backwards recursion to solve games, normal form, dominant strategies and other basic game concepts. NO SLIDES