Bartok "Concerto for Orchestra" played for a live audience in the Royal Albert Hall, London. This performance was shown on a PBS tribute to Sir George Solti in the late 70s. Sir George gave an inspired performance, and the crowd went absolutely wild at the finish. The broadcast was hosted by Bill Curtis, long-time Chicago News Anchor, and had interviews with Sir George focusing on his time with the CSO.
Would love to have this video.