In 1987 David Olson and Derrick de Kerckhove hosted a conference, "Orality & Literacy", bringing together the teachings of Marshall McLuhan, Northrop Frye and Eric Havelock in a series of talks and lectures. Havelock attended and fortunately the conference was recorded and broadcast on CBC's Ideas program as "Literacy: The Medium and the Message" in 1988. That three part series has been made available as a podcast by David Cayley, host of Ideas, on his site.