Beginning before 1960 and continuing into the 1980s, Margaret S. Ratz used Unifon to teach first-graders at Principia College in Elsah, Illinois. By the summer of 1960, the ABC-TV affiliate station in Chicago produced a 90-minute program in which Ratz taught three children how to read, in "17 hours with cookies and milk," as Malone described it. In a presentation to parents and teachers, Ratz said, "Some have called Unifon 'training wheels for reading', and that's what it really is. Unifon will be used for a few weeks, or perhaps a few months, but during this time your child will discover there is a great similarity between Unifon and what he sees on TV screens, in comics or road signs, and on cereal boxes. Soon he finds with amusement that he can read the 'old people's alphabet' as easily as he can read and write in Unifon."