How about "Tonight in person"?
One BBC programme featuring Judy Collins with Eric Weissberg on guitar and Chuck Israels on bass, recorded in 1966. I used it for editing practice when I worked in the videotape room at WNTV1, back in 1968/9. When I left I kept the old 2inch videotape until I found a mate in the tape room who dubbed it onto a videocassete for me, using the last big Ampex 2000 machine they had that was still working.
Or maybe I shouldn't mention that??
Cheers,
Robyn