Although this claims to be a radio broadcast (likely to make it appear legit under EU copyright laws which treat broadcasted material differently) it’s likely actually an audience recording, with a few additional tracks of unknown recording date attached. This 1974 Bottom Line show has been bootlegged many times, but is also now an official release of the Neil Young Archives Official Bootleg Series (OBS 05) as Citizen Kane Jr. Blues. (The official release notes: “This is the only recording of that night, recorded from a tabletop in the club on a cassette recorder”).
Parachute Recording Company releases on vinyl various items said to be radio broadcasts – quality varies. I can’t compare the quality here to the official release – I imagine the official release is considerably better and will be on the lookout for it, but glad I took a flier on this version. (Via Waterloo Records in Austin TX).