some downloadable links
bull in the heather on letterman
http://www.badongo.net/vid/91892
unmade bed on letterman
http://www.badongo.net/vid/95104
pattern recognition on kilborn
http://www.badongo.net/vid/91892
nevermin on conan o brien
http://www.badongo.com/vid/95160
search for "sonic live videos anyone" thread
http://www.sonicyouth.com/gossip/showthread.php?t=360
to find some more sonic goodies,don't know if all the links are working properly...