I saw Ricky Skaggs some years ago when he was still with Buck White and The Down Home Folks, and some _____ (pick your own noun to fit in there) in the audience yelled out, "Play Rocky Top!" Ricky was clearly dumbfounded and said, "Are you kidding??" He went on to explain, no they didn't do that, and the Osbornes weren't there. It is pretty obvious sometimes that certain members of the audiences know absolutely nothing about the groups that are performing or their repertoires.
About the TV show with the mill, seems I vaguely remember it too. Sunday nights, starring Ronnie Something?