BBC Education & Training ; BBC/Open University co-production ; series producer, Dinah Lord ; produced and directed by Angela Chan ; executive producer, Tessa Livingstone
Films for the Humanities & Sciences, BBC Education & Training ; co-production BBC/The Open University ; produced and directed by Rob Gill and David Berry ; series producer, Dinah Lord
a co-production of Thirteen/WNET New York, BBC, and CBC ; series producer, William Cran ; directed by William Cran & Rebecca John ; producer, Rebecca John ; writer, William Cran
BBC Education & Training ; co-production BBC/The Open University ; directed by Josh Good ; executive producer, Tessa Livingstone ; series producer, Rachel Coughlan