produced by Steven Latham, Larry Klein, Evan I. Schwartz ; written by Larry Klein and Evan I. Schwartz ; directed by Steven Latham ; a Steven Latham production for WGBH/NOVA
produced by Kelly Thomson ; written and directed by Llewellyn M. Smith ; a production of BlueSpark Collaborative, LLC. ; in association with ARTE France for GBH Studio Six
written and directed by Ian Denyer ; series producer, Ian Denyer ; an Oxford Films production in association with Apostles for the WNET Group, in association with the BBC
presented and written by Henry Louis Gates, Jr. ; produced and directed by Ricardo Pollack ; produced by Inkwell Films, Thirteen and Wall to Wall Media LTD