What was the name of the special that John Ritter did with his first wife when their children were small about how children take what adults say literally and how that plays out in their young minds?

What was the name of the special that John Ritter did with his first wife when their children were small about how children take what adults say literally and how that plays out in their young minds?
I think the programme is The Secret World of the Very Young.If you take a look on the IMDB website you will find it on there