a production of TLC ; in association with James Burke and the Principal Film Company, UK ; a presentation of Discovery Productions ; presented by James Burke
written, produced, and directed by Christine Lesiak ; co-producer/director, Annie Mumgaard ; a Nebraska ETV Network production for American Experience ; WGBH Boston ; PBS
written and presented by James Burke ; a BBC-TV production in association with RKO Pictures, Canale 5, Italy, FR3, France, YLE, Finland ; series producer, Richard Reisz ; producer, John Lynch
written and directed by David Grubin ; produced by David Grubin ; a David Grubin Productions Inc. film for American Experience in association with the BBC