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
a WGBH production in association with the British Broadcasting Corporation for NOVA ; produced & directed by Carl Charlson ; written by David McCullough
Thirteen/WNET/Uden Associates/David Filkin Enterprises co-production in association with BBC-TV ; Educational Broadcasting Corporation ; series producer, David Filkin ; series director, Philip Martin