Author
Films for the Humanities & Sciences (Firm)
18
Infobase
18
Public Broadcasting Service (U.S.)
13
Infobase,
10
BBC Worldwide Ltd
3
Creative Arts Television (Firm)
2
American Museum of Natural History
1
Burns, Ken, 1953-
1
EBS World Entertainment
1
First-Run Features (Firm)
1
Home Box Office (Firm)
1
MVD Entertainment Group
1
Moyers, Bill D.,
1
Oscilloscope Pictures
1
Parallel Lines (Firm)
1
Pheasants Eye Productions
1
Public Affairs Television (Firm),
1