Just like Inside the Actors' Studio--but with adult (i.e., porn) stars.
(Sample dialogue: "And then you made a little movie called Anal Gang Bang 6." Audience: oohs and ahs, smattering of applause.)
Instead of James Lipton metaphorically crawling up the star's ass, the host would literally go up the star's ass--with latex gloves and lube.
--E. R. O'Neill