From the Advanced Austrian Economics seminar of the Foundation for Economic Education, you can find below a 8 parts video on which Israel Kirzner speaks about the entrepreneurship.
Part 1.
http://www.youtube.com/watch?v=skIxOCULovk
Part 2.
http://www.youtube.com/watch?v=q0mGbRU5r8o
Part 3.
http://www.youtube.com/watch?v=tEghbRBEsRA
Part 4.
http://www.youtube.com/watch?v=gEQAZrLCWv4
Part 5.
http://www.youtube.com/watch?v=BM1ajCIYjpM
Part 6.
http://www.youtube.com/watch?v=hA5AhXk1NGA
Part 7.
http://www.youtube.com/watch?v=FWR6GA4qwKc
Part 8.
http://www.youtube.com/watch?v=NGE_vp8VPeg
NB: I leaved aside the 9th part that presented no interest, in view of the fact we cannot hear the questions…