He says 48 minutes in that the Templeton foundation "were no longer" and that they only supported the site for four months.
However, their ads are still on the sponsored videos beneath:
http://bloggingheads.tv/percontations
...so the Templeton foundation link apparently remains. Maybe there will be no more percontations, though.
I declare this Open Thread open for discussion of Less Wrong topics that have not appeared in recent posts.