a Cream Productions, Inc. production in association with National Geographic Channel, Prosieben, History Television, and Sevenone ; producer/writer, Stephen Milton ; producer/director, Christopher Rowley
2 Entertain ; BBC ; BBC Earth ; a BBC/Discovery Channel/France Television co-production ; series producer, Dale Templar ; executive producer, Brian Leith ; BBC Productions Bristol/Wales
written and produced by Graham Chedd ; directed by Larry Engel ; a co-production of Chedd-Angier-Lewis Productions and Thirteen in association with WNET.ORG
written, produced and directed by David de Vries ; produced by Vincent Lopez ; produced by Flight 33 Productions for History Television Network Productions