executive producer and curator, Susan Sollins ; series producer, Eve Moros Ortega ; series created by Susan Sollins and Susan Dowling ; a production of Art21, Inc
written, produced and directed by John Angier ; presented by CPTV ; produced in association with Scientific American magazine ; produced by Chedd-Angier
produced and directed by Stanley Nelson ; written by Marcia A. Smith ; a Firelight Media production for American Experience ; WGBH Boston ; WGBH Educational Foundation
a Frontline co-production with the Palfreman Film Group ; WGBH Educational Foundation ; senior producer, Raney Aronson ; co-producer, Kate McMahon ; written, produced, and directed by Jon Palfreman
produced by Wall to Wall Television for BBC and PBS in association with ITEL ; written and presented by Henry Louis Gates, Jr. ; directors, Nicola Colton, Nick Godwin, Helena Appio