The creator and executive producer of "Dr. Quinn, Medicine Woman," the CBS series which lifted the network out of the doldrums of Saturday nights, Beth Sullivan is one of the few women to be a show runner for a drama series. She has been with the series since she wrote the pilot in 1992, and it premiered as a regular series in January of 1993. The story of a physician from Boston (Jane Seymour) who comes to the west in the 1860s, "Dr. Quinn" also surprised the pundits by succeeding at a time when morality play westerns were considered a genre long buried and the notion of a female leading an