I bumped into some recently posted clips of Tony MacMahon on youtube, of him in Germany in the late 70s.
http://www.youtube.com/watch?v=VazIQ4-nG4I
http://www.youtube.com/watch?v=8krXkUUdQas
http://www.youtube.com/watch?v=AOyvvKLkbCQ
http://www.youtube.com/watch?v=HF0fZDE6fs0
Thanks to Clarebannerman for putting them up! Its great stuff!