Joe has made these available for downloading and viewing. Thhe shows are posted at:
http://radiodx.googlepages.com .  In addition, (due to frequent overloading of that
site) all 5 shows available on YouTube.  Here are the links to the 5 videos:

Hamvention 2006 "Calling America"
http://www.youtube.com/watch?v=GGrf3Ywxw8M

Hamvention 2006 "Taking Care Of Business"
http://www.youtube.com/watch?v=o7cvqVFZ_xs

Hamvention 2005 "You Ain't Seen Nothing Yet"
http://www.youtube.com/watch?v=GPRBpocp2m8

Hamvention 2005 "Mr. Blue Sky"
http://www.youtube.com/watch?v=cUt0i9OryMw

Hamvention 2004 "It's Raining Again"
http://www.youtube.com/watch?v=OAspMFm283U

Hamvention 1987 "Destination Dayton"
http://video.yahoo.com/video/play?vid=284154&fr=yfp-t-501