Gary Whitta is seated behind a thick wooden desk, hair perfectly coiffed, wearing a suit and a smile that curls upward like a macaroni noodle. He’s halfway through introducing his next guest, Greg Miller, when a beachball-sized head bobs into view. Whitta starts to yell. “Greg! I — goddamn you. Get back up the stairs. What is he doing?” Bandleader and video editor Adam Nickerson giggles behind his drumset.