National Geographic ; produced by Darlow Smithson Productions in association with Channel 4 and France 5 for National Geographic Channel ; producer/director, Yavar Abbas
PBS ; a production of KERA ; produced in association with Once TV-Mexico City ; produced by Andrea Boardman, Ginny Martin, Rob Tranchin ; written by Rob Tranchin ; directed by Ginny Martin
a series by Ambrica Productions in association with WGBH Boston and Channel 4 Television UK ; executive producer, Judith Vecchione ; written produced and directed by Sue Williams