As I am preparing for the upcoming concert with Lake George Chamber Orchestra (playing Beethoven Piano Concerto No.5 and Tchaikovsky Symphony No.6), I just found this YouTube video.
My favorite (and the only) recording of this piece has been Abbado with Chicago Symphony from the 80's. This video is from 2010 and it sounds very different. Even though the orchestra is much younger than the CSO, Abbado's interpretation seems more matured and deeper. This is going to be my new favorite!