On the Cusp, a podcast by Ben Greene, features writers, actors, and improvisers trying to make it in the industry. Here are some episodes with TV writers:
Episode 14 -- Jen D'Angelo (Cougar Town, The Millers)
Episode 16 -- Lauren McGuire (Comedy Bang Bang)
Other TV writer guests include Dan Lippert, Justin Michael, Madeline Walter, and Ben Axelrad. All the other episodes can be found on iTunes, Stitcher or Soundcloud. Check 'em out!