1958, 26 episodes, WCET (Cincinnati)
From WNET:
"Uncle Wonder makes the principles of the sciences simple for the pre-school child. Glenn Ryle, as Uncle Wonder, participates with children in their own world to help them discover some of the “truths” of the world. The series emphasizes power and includes simple demonstrates of natural phenomena such as gravity, sound, light, etc. Uncle Wonder operates in a three-part workshop: workbench for woodworking and demonstrating; nursery section for planting and plant demonstrations; and a laboratory setting for work with water, chemicals, and other liquids. Uncle Wonder makes the principles of the sciences simple for the pre-school child. He uses domestic objects, such as a milk bottle or a bar of soap, to illustrate how rain is formed or how surface tension works. Many of his TV experiments can be duplicated in the home with materials normally at hand. Uncle Wonder in each program invites his viewers into his workshop where he answers many of the questions of wonderment that fill the minds of little folk."