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 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
produced by Actuality Productions ; History Television Network Producations ; The History Channel ; written and produced by Emily Lau and Gloria L. Morris ; producer: Bruce Nash ; created by Bruce Nash
produced by Actuality Productions, Inc., History Television Network Productions ; written and produced by Greg Dehart ; producer, Bruce Nash ; created by Bruce Nash
The History Channel ; written and produced by Dean Vallas ; producer, Bruce Nash ; created by Bruce Nash ; produced by Actuality Productions, Inc. ; Hearst Entertainment