Diamond Book Distributors has announced that BBC Worldwide Americas has granted it the exclusive right to distribute Dr. Who novels to the bookstore, library, warehouse, mass merchandise, and comic book specialty markets.  While not as hot as they were at their peak in the 1980s, when the show aired on 400 PBS stations in the U.S., a solid fan base for the line remains.  The show was the longest-running science fiction program in history; it aired from 1963 to 1989 on the BBC.