I could have sworn that I typed this up Sunday, but apparently I did not actually post the list. What I found digging through there was a lot of copies of albums, but the following are what appear to be recordings off radio or TV:
Emmy Lou Harris "Live From Chicago", recorded from PBS
John McEllen "Austin City Limits", recorded from PBS
Bob Dylan "Live from KMET" (two reels)
Kingston Trio "Live", recorded from PBS
White House Jazz Festival, recorded from KUOP
"Benefit at Juicy John Pink's", recorded from KUOP
Hoyt Axton "Live", recorded from KFAT
The Statler Brothers "Live", recorded from KFAT
John Stewart Interview, recorded from KFAT
Guy Clark Interview, recorded from KFAT
Arlo Guthrie & Pete Seeger: Live at Wolf Trap, recorded from KUOP
Hoyt Axton "Live at the Great American Music Hall" recorded from KFAT
George Gerdes "Live from the Bottom Line", recorded from NPR (I think?)
John Hartford "Live from the Bottom Line", recorded from NPR
Tom Waits "Live on Austin City Limits" recorded from PBS
Jimmy Buffet "Special" recorded from KMPC
There is on that is John Prine: "Live at the 7th Annual Banjo & Guitar Festival at Long Beach State" which looks like it was recorded off radio, but I will have to wait until to tomorrow to confirm. It does not have a station listed, but it also does not have the record label, catalog number, and year like all of the copied album reels have.