a Nova production by Hamilton Land & Cattle, Inc. for WGBH-Boston ; WGBH Educational Foundation ; Written and produced by Doug Hamilton ; associate producer: Solana Pyne
WGBH Educational Foundation ; a Basic Black and Frontline co-production for WGBH/Boston ; producer, June Cross ; written by June Cross, Henry Louis Gates, Jr
American Experience Films presents ; an Insignia Films production for American Experience ; WGBH Educational Foundation ; WGBH ; directed by Stephen Ives ; produced by Amanda Pollak ; written by Michelle Ferrari
produced by Swedish Television in association with WGBH Boston ; directors and producers, Bo G. Erikson, Carl O. Lofman ; for NOVA, written and produced by Bebe Nixon
written by Stephen Lyons & Llewellyn M. Smith ; directed by Llewellyn M. Smith ; produced by Llewellyn M. Smith, Stephen Lyons ; a Nova production for WGBH Boston ; WGBH Educational Foundation
PBS ; written by Rachel Dretzin ; produced and directed by Rachel Dretzin and John Maggio ; a Frontline co-production with Ark Media, LLC ; WGBH Educational Foundation