52 episodes, 1958, KETC (St. Louis)
From WNET:
"'The world is so full of a number of things, I’m sure we should all be happy as kings,' says Dora Velleman in opening the National Educational Television series, “A Number of Things.” Each concept is covered in story form, accompanied by sketches, puppets, felt-board illustrations, or a make-do theater of a peep-show parade. Dora tells the story to Fignewton Frog, a puppet, and she has a special review session at the end of each program, to distinguish fact from fantasy. Through the program, children in the pre-school and primary school age groups will learn simple natural science concepts and will be stimulated to do some of the experiments themselves, using the illustrating techniques. The series was produced by KETC, St. Louis, with Bob Miller, producer."