Phillip James Edwin Peebles is a Canadian-American physicist and theoretical cosmologist who is currently the Albert Einstein Professor Emeritus of Science at Princeton University. He is widely regarded as one of the world's leading theoretical cosmologists in the period since 1970, with major theoretical contributions to primordial nucleosynthesis, dark matter, the cosmic microwave background and structure formation. Wikipedia*
On the C-SPAN Networks:
P.J.E. Peebles has one video in the C-SPAN Video Library; the first appearance was a 1996 Speech.