I saw him speak a few years ago here in Myrtle Beach. Sounds like he did about the same speech (at least that part). I never knew much about him, other than his program. After hearing him speak, I decided to do some more research on him. Now he is one of me heroes.
Yes he DID study under Sagan at Cornell.
Anyway, I recorded his talk (as much of it as I could) and have a copy at my house. I'd be glad to share if I can dig it up.
BTW...he was talking to a group of science teachers. After hearing some of the comments from other teachers, I understand why we aren't too far up there on our science scores. Some were actually upset that he would even MENTION evolution. I felt like asking for their "science teacher card" so they wouldn't be allowed to taint any more young minds.