created and developed by the Corporation for Entertainment and Learning, Inc. and Bill Moyers ; in association with WNET/New York and KQED/San Francisco ; director/producer, David Grubin ; writers, Ronald Blumer, Bill Moyers
telescript by Roger Bingham and Carl Byker ; story by Roger Bingham & Lena Einhorn ; directed by Roger Bingham ; producer, Lena Einhorn ; ... a production of KCET/Los Angeles in association with Science and Society Television, Inc
produced by Productions Coscient ; in association with Canal Vie ... [and others] ; producer, Vincent Leduc ; directed by Pierre L'Espérance ; written by Maryse Pelletier
a presentation of WNET/New York and WETA/Washington ; a production of Alvin H. Perlmutter, Inc. and Public Affairs Television, Inc. ; producer, Paul Kaufman ; writers, Bill Moyers, Paul Kaufman