NOT a new addition

At first glance, it appears this A Concert: Behind Prison Walls LP includes a rare mid-'70s live version of I'll Be Your Baby Tonight by Linda Ronstadt.
However...
On the back of the LP it reads: "contains several selections from that show - together with other hits that made these stars famous." Selections in this case apparently meant songs, not performances, as all of the tracks on this LP are the regular studio recordings by Linda, Johnny Cash and Roy Clark.
NAPA auto parts stores sold this deceptively titled ©1978 LP after sponsoring the A Concert: Behind Prison Walls TV special, but the album has no content from the broadcast. The TV concert is now available on CD and DVD, but neither contains Linda doing Baby Tonight, so I assume it was one of the "other hits" and not a "selection from the show."
I have added the album to the Linda Ronstadt Collector's Guide for future reference.