Since taking over as CEO of PBS in 2000, Pat Mitchell “has been herding cats, struggling to bring unity and stability to the nation’s loose affiliation of 349 noncommercial television stations. With varying success, she has shifted some of the network’s ‘icon’ series from their hallowed time slots in an effort to bring a new thematic consistency to the weekly offerings. None of these changes, even ones that seem superficial, have been easy.”