Jeff Garlin records these live onstage. This is his about-an-hour conversation with Sarah (posted 10/15/13 but probably recorded 11/19/12 at Largo). The Earwolf description says this:
Sarah Silverman and Jeff have known each other since their Wall of Denial improv days. They chat about taking trips to SNL, why the idea of suicide is so whimsical, grapes being toxic to dogs, Woody Allen movies, and the importance of watching TV. It’s a big bowl of whimsy!