Main contributor
- Gray, Richard66
- Vicki Rubin61
- George Feil54
- Indiana University, Bloomington. Audio-Visual Center52
- Ron Osgood52
- Herman Hellerstein49
- David Hellerstein46
- Kathryn Hellerstein46
- Maren Mansberger Feil46
- Porges, Stephen W.46
- Betsy Feil45
- Daniel Hellerstein45
- Jonathan Hellerstein45
- Ellen Feil44
- National Educational Television44
- Susan Hellerstein44
- Amy Feil43
- Leslie Feil43
- Beth Hellerstein41
- Dapena, Jesus41