A few minutes ago at TCA, NBC announced that 30 Rock will air a live episode in October. They’ll perform separate versions for viewers on both coasts, giving Tracy Morgan two chances to deliver lines exactly as written. In other Peacock news, Rob Lowe will join Parks and Recreation as a full-time cast member (he had previously only signed on for six episodes). And NBC has decided to debut a few shows early this fall, with Parenthood now premiering September 14, Outlaw on September 15, and The Apprentice on September 16.