I have a note that author Steve Weissman (Chaplin A Life) is scheduled to be interviewed on The Diane Rehm Show on Monday, January 12th, 2009 at 11AM *Eastern Time.
The Diane Rehm Show is listed on the public radio station WAMU 88.5FM (American University Radio). This is the NPR station in *Washington DC.
UPDATE: January 12, 2009 - Stephen Weissman (Chaplin: A Life) interview on the Diane Rehm Show (11AM Eastern Time). Program link.
I don't know for how long, but the program is now available to listen to by Real Audio and Windows Media.
Update: Chaplin A Life, is planned to be published in Germany and the UK.