Plot: Returning for its third installment, the Emmy and Peabody Award-winning COSMOS will once again be executive-produced, written and directed by Ann Druyan (NASA’s Voyager Record, “Cosmos: A Personal Voyage,” “Contact”); executive-produced by Seth MacFarlane, Brannon Braga and Jason Clark; and hosted by Neil deGrasse Tyson, the famed pop-culture icon and astrophysicist.