I did not even go to kindergarten; I just started first grade when I was five and started reading right away. I don't know how it all worked, but I had a lot of adults and older siblings around me. So, I guess I was probably introduced to what one would be introduced to at that time in kindergarten.
I was a TV producer at a noncommercial station, and we were producing some good documentaries - on Head Start, on poverty. But I was struck by the children, and the damage that poverty was doing to them. I didn't think filming them was helping much, so I wondered how we could use TV for them, to teach them.