 In 1975 he participated in a television documentary filmed by Stephen Rose for the BBC "Horizon" TV series while based at the Toronto Institute for Studies in Education.The programme focused on his work with a single 3 1/2 year old child called Matthew.He was against the 1970s idea that children should first learn the letters and letter combinations that convey the English language's forty-four sounds (Clymer's 45 phonic generalizations) and then they can read whole words by decoding them from their component phonemes.