a production of CBC Television in co-production with BBC and in association with the History Channel ; written, produced and directed by Alan Mendelsohn
written and produced by Peter A. Steen ; director, Bruce Nash ; created by Bruce Nash ; produced by Actuality Productions, Inc. for the History Channel
produced by Perpetual Motion Films for the History Channel ; produced & directed by Monte Markham ; written by Lee Fulkerson ; producer, Klaire Markham ; producer/Japan, John Junkerman
director, David W. Padrusch ; producers, Matt Koed, David W. Padrusch ; writers, Matt Koed, Sara Padrusch, and David W. Padrusch ; produced by Limulus Productions, Inc. for the History Channel
produced by Actuality Productions, Inc. [for] History Television Network Productions ; The History Channel ; written and produced by Holly A. Murdoch and Nancy Oey ; producer: Bruce Nash ; created by Bruce Nash
a Non Fiction Films presentation of a Pacific Street Films production for the History Channel ; producers: Steven Fischler, Joel Sucher ; director: Clark Bortree ; writer: Stefan Kotsonis
Actuality Productions, Inc. for the History Channel ; a presentation of Hearst Entertainment ; written and produced by Joshua Hanig ; created by Bruce Nash ; producer, Bruce Nash