In 1988, Miller served as an intern at Nightline and the Minneapolis Star Tribune. From 1989 to 1990, she wrote for the South Bay and Valley editions of the Los Angeles Times. From 1990 to 1993, she worked as an Assignment Editor, Producer and Reporter for Orange County Newschannel in Santa Ana, California. From 1993 to 1994, she was a reporter and Weekend Morning anchor at WIS-TV in Columbia, South Carolina.