a BBC Studios Natural History Unit production ; a co-production with BBC America, Tencent, WDR, France Televisions and CCTV9 ; a BBC Open University partnership ; executive producer, James Honeyborne ; series producer, Mark Brownlow ; producers, Miles Barton, Orla Doherty, Kathryn Jeffs, Will Ridgeon, John Ruthven, Jonathan Smith
A production of The Documentary Guild in association with WGBH Boston for Nova ; WGBH Educational Foundation ; Executive editor, William Grant ; executive producer, Paula S. Apsell ; written, produced and directed by Rob Whittlesey and Noel Buckner
American Experience Films presents ; produced by Callie T. Wiser ; written and directed by David Belton ; a Sarah Colt Productions film for American Experience
produced by John Marshall and Sue Marshall-Cabezas ; directed and edited by Adrienne Miesmer and John Marshall ; a co-production of Documentary Educational Resources and Public Broadcasting Associates
a co-production of Thirteen for WNET.org and Mannes Productions, Inc. in association with ARTE/France, NDR, Australian Broadcasting Corporation with the participation of YLE ; Louise Rosen Ltd. ; a film by Elena Mannes ; executive producers, Elena Mannes, Margaret Smilow ; written and directed by Elena Mannes
produced and directed by Stanley Nelson ; written by Marcia A. Smith ; a Firelight Media production for American Experience ; WGBH Boston ; WGBH Educational Foundation
a National Geographic Television and Survival Anglia Limited co-production ; executive producer, David Royle ; producers, Bruce Davidson, Cynthia Moses ; writers, Bruce Davidson, Cynthia Moses, William Clark
a production of TLC ; in association with James Burke and the Principal Film Company, UK ; a presentation of Discovery Productions ; presented by James Burke
a Maya Vision production in association with the BBC and PBS ; written and presented by Michael Wood ; directed by David Wallace ; produced by Rebecca Dobbs
directed by Henry Chalfant ; produced by Elena Martínez & Steve Zeitlin ; written by Henry Chalfant, Marci Reaven and Steve Zeitlin ; a co-production of City Lore, Inc., Public Art Films and the Independent Television Service (ITVS) in association with Latino Public Broadcasting
a Nova/WGBH production ; produced by Matthew Barrett, John Rubin, and Sarah Holt ; written by John Rubin ; directed by John Rubin, Rushmore Denooyer, Serena Davies, and Sarah Holt
a co-production of Steeplechase Films and the Center for Asian American Media for PBS ; in association with the New York Historical Society ; directed by Ric Burns and Li-Shin Yu ; story by Ric Burns and Robin Espinola & Li-Shin Yu ; telescript by Ric Burns ; produced by Li-Shin Yu, Robin Espinola, and Ric Burns
written, produced and directed by Peter Frumkin ; produced in association with the Center for Independent Documentary ; a co-production of Peter Frumkin Productions LLC and Thirteen/WNET New York
a production of Craft in America, Inc. ; director, Nigel Noble, Daniel Seeger ; producer, Patricia Bischetti ; writer, Steve Fenton ; creator, Carol Sauvion ; presented in association with KCET/Los Angeles
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