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 JTN Productions and Thirteen ; in association with NDR and WNET.org ; produced and directed by Mike Dewitt ; written by Mike Dewitt, Daniel Jonah Goldhagen
a Frontline co-production with RAINmedia, Inc. ; a production of WGBH/Boston ; written and produced by Martin Smith and Marcela Gaviria ; co-produced by Will Cohen
series producer, Graeme Hart ; a production of McGee Media, Inkwell Films, Kunhardt Films and WETA Washington, D.C., in asociation with Nutopia Limited ; written by Henry Louis Gates, Jr. ; producer/directors, Mark Bates, Karen McGann and Virginia Quinn
PBS ; a film by Kunhardt McGee Productions and Inkwell Films in association with Ark Media ; written by Henry Louis Gates Jr. ; senior producers, Barak Goodman and Sue Williams ; executive producers, Henry Louis Gates Jr., William R. Grant, Peter Kunhardt, Dyllan McGee ; a production of Kunhardt McGee Productions, Inkwell Films and THIRTEEN for WNET.ORG
a production of WETA Washington, D.C. ; Bosch and Company LLC ; and Latino Public Broadcasting (LPB), in association with the Independent Television Service (ITVS) ; series producer, Adriana Bosch ; directors, David Belton and Sonia Fritz