Two presentations worth the time from the first Göbeklitepe symposium 2012:
Trevor Watkins: Re-thinking the Neolithic Revolution
https://www.youtube.com/watch?v=sAckedr2674
http://edinburgh.academia.edu/TrevorWatkins
and
Klaus Schmidt: Göbekli Tepe - Sanctuaries of the Stone Age
https://www.youtube.com/watch?v=J1PDX0NjwsA
Thanks.