I saw that program, too. It WAS great. I have an old Michelangeli LP with Rachmaninov's Concerto #4 and Ravel's G major concerto. I don't know if it's "great", but it's rare. He didn't like making recordings. It may be on CD now. In the back of the Schwann Catalogue, there are listings by instrument. Back in 1995 EMI CDH 64490 was listed for Michelangeli, containing music by Beethoven, Brahms, Granados, Grieg, Mompou, and D. Scarlatti.