Further reading of the liner notes reveals another reason why the Broadcast recordings are better.
The Carnegie Hall concert was recorded with one microphone hung way up in the ceiling. It was not planned to use the recording for a record release to the public. The Broadcast recordings benefited from careful microphone set up and balancing by the audio engineers of the radio stations doing the broadcast.
The Carnegie Hall concert was recorded with one microphone hung way up in the ceiling. It was not planned to use the recording for a record release to the public. The Broadcast recordings benefited from careful microphone set up and balancing by the audio engineers of the radio stations doing the broadcast.

