There is a Public Radio program called
"The Score" that comes on here on Friday afternoons at 2PM; it features various film scores. I don't usually get to hear much of it, as I mostly listen to the radio in the car. But I got off work a few minutes early this afternoon, and it was just starting up. Howard Shore was the guest, and they were listening to his work on the six Middle-earth movies he did with PJ and discussing it. I hurried in the house and turned it on there and spent an enjoyable hour listening to Howard Shore discussing his work on the films, interspersed with the wonderful music.
Anyway, the station will be running an encore tomorrow at 11AM our time (Central). The station is KOCU 90.1
http://radiostation.org/kocu-90-1-fm-in-altus-oklahoma/ so if you are interested and want to try listening online, you might be able to. Or you could check and find out when your own local public channels are running that particular show in your area.