This past December, David Selby appeared in the L.A. Theatre Works live audio theatre production of On the Waterfront in the role of Fr. Vincent, a character specifically written for this adaptation.
On the Waterfront will be broadcast on March 29 at 8pm by KPCC FM 89.3 in Southern California. Although many public radio stations offer live streaming audio via the Internet, KPCC does not.
However, those not in the KPCC listening area can check their local NPR station's broadcast schedule to see if LATW productions are part of the lineup. Schedules vary from station to station.