produced by Ian Duncan and Johnny Shipley ; written and directed by Ian Duncan ; produced by Windfall Films Ltd. for NOVA/WGBH Boston ; produced by WGBH
written, produced, and directed by Terri Randal ; narrated by Jay O. Sanders ; a NOVA production co-produced by Pioneer Film and Television Productions Limited with China International TV Corporation with CCTV-10 and PAAN Media Holdings Co. Limited, with KBS Korea in association with PBSd, for WGBH and KBS
written, produced, and directed by Terri Randal ; narrated by Jay O. Sanders ; a NOVA production co-produced by Pioneer Film and Television Productions Limited with China International TV Corporation with CCTV-10 and PAAN Media Holdings Co. Limited, with KBS Korea in association with PBSd, for WGBH and KBS
written, produced, and directed by Terri Randal ; narrated by Jay O. Sanders ; a NOVA production co-produced by Pioneer Film and Television Productions Limited with China International TV Corporation with CCTV-10 and PAAN Media Holdings Co. Limited, with KBS Korea in association with PBSd, for WGBH and KBS
written, produced & directed by Jamie Lochhead ; a NOVA production by Windfall Films Ltd. (part of the Argonon Group) for WGBH Boston produced in association with the BBC
written, produced, & directed by Iain Riddick ; produced by Ruth Roberts ; produced by Darlow Smithson Productions Ltd, Shock of Mighty Productions and Handel Productions (EFS) Inc. in association with NOVA/WGBH Educational Foundation and Discovery Channel Canada ; WGBH
written and directed by Nic Young ; produced by Crispin Green, Laura Warner, Elizabeth Trojian ; senior series producer, Melanie Wallace ; produced by Blink Films and Yap Films for NOVA/WGBH Boston
produced and directed by Graham Townsley ; senior series producer, Melanie Wallace ; a production of NOVA and National Geographic Studios for WGBH Boston