Before television and the Internet, families would gather together around the radio and listen to their favorite shows.  Radford University Professor Bill Kovarik will discuss this golden age of radio and his new book, "Revolutions in Communication: Media History from Gutenberg to the Digital Age," on the radio program "With Good Reason." Listeners in the New River Valley can hear the broadcast on Tuesday, January 22, 2013 at 6:00 p.m. on Public Radio WVRU 89.9.  Read more in RU Today.