|Radio interviews have the luxury of working well on either commercial or non-commercial stations. Your topic of conversation will, of course, help determine what direction you want to go. There are 14,000 radio stations (commercial plus non-commercial) in the U.S. and Canada, ranging in size from tiny to huge, with interview booking times varying from immediate to over a year. In any city or town, there are more radio stations than TV stations and newspapers combined. That makes radio a great place for publicity, as long as you are not trying to contact them all yourself.