Herbert Marshall Mcluhan (*1911 - +1979) lecture recorded by ABC Radio National Network on 27 June 1979 in Australia. For the best resource collection of his work check out the page Mcluhan on Maui (MOM) here:
http://www.mcluhanonmaui.com/ The best documentary about Mcluhan (in four parts) is definitely CBC's Life and Times: Understanding Mcluhan here: part 1:
http://www.youtube.com/watch?v=WvpPb89ChM0 People seriously studying his work I can point to Douglas Hofstaedter.