Here is a curious recording: http://vispo.com/temp/mcluhan.m3u (if m3u
(streaming) audio work for you, or http://vispo.com/temp/mcluhan.mp3 if it
doesn't (though the latter URL requires a 25 mb download before you can hear
anything)).

This is a recording of Marshall McLuhan (warts and all) visiting a High
school classroom in Toronto, in conversation with the students. I'm not sure
of the date of this recording. Probably late sixties (his book
'Understanding Media' was published in 1964). A friend of mine taped this
recording when it appeared on the CBC radio program Ideas back when it was
aired, which was probably late sixties or early seventies. It was recorded
and edited by Alan Anderson.

ja
http://vispo.com