In case you missed the live broadcast on BBC3 today, you can still listen to it -- like I did just now, by visiting In Tune. The part with PJ's interview ends at approximately 22 minutes 54 seconds. In it, he discusses how the human aspect of working with his CSO players is most important, how relatively unknown it is to most of the world the number of works which were premiered by or written for the CSO (the Mahler 5's American premiere was in Cincinnati; Copland's Fanfare for the Common Man commissioned by it), and the difficulty of filling the house when it's the largest concert hall in North America. He also gives props to the May Festival and James Conlon.)
For an archive of other interviews previously done by PJ on BBC3, go HERE. Real Player is required for listening.