Mary Ritts and Paul Ritts were puppeteers on the show; Paul performed Albert, Calvin and Sir Geoffrey, while Mary played Magnolia.
[1] Besides the Ritts puppets, the series also featured short films, animated versions of famous legends, and music Millard Research Associates produced a printed copy of their survey results which found over 600,000 Exploring Teachers Guides were requested for teachers in major school districts all across the country (they were free).
A Millard survey found 86% of the teachers requesting the Guides were assigning the Saturday morning program for family viewing.
This was done again on CBS with the Teachers Guides to the 21st Century (Young and Rubicon researched this) and later on PBS.
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