written by Charlie Brooker ; producer, Barney Reisz ; executive producers, Charlie Brooker and Annabel Jones ; Zeppotron, an Endemol company production for Channel 4
a production of TPT National Productions in association with Insignia Films ; produced by Twin Cities Public Television ; produced by Amanda Pollak ; written by Jaime Bernanke with additional material by Peter Sagal ; directed by Stephen Ives
produced by Spectrum Field Productions LLC for Animal Planet ; executive producers, Guy Nickerson, Jim Rapsas ; director, Guy Nickerson ; producer, Sara Helman