Daniel Jaffe is an American astronomer, currently the Jane and Roland Blumberg Centennial Professor at University of Texas at Austin. Wikipedia*
On the C-SPAN Networks:
Daniel Jaffe has four videos in the C-SPAN Video Library; the first appearance was a 1989 Senate Committee. The year with the most videos was 1990 with two videos. The year with the highest average number of views per program was 2005 with an average of 131 views per program.