Leonard Bernstein documentary on PBS

I caught the last half of a documentary on Leonard Bernstein which was on PBS (thanks Rebecca for letting me know). Some "expert" in the documentary commented about how Leonard Bernstein wanted to be a sort of a reincarnation of Mahler in his work. I thought that was a pretty big thing to say. Mr. Bernstein also conducted Beethoven's 9th Symphony on the either side of the crumbling Berlin Wall in 1989. I have to look out if I could find a recording of him conducting Mahler's 5th.