Deidre Hall says she is far from done with "Days of Our Lives." She told People.com on Friday she will keep her role on the NBC soap. She is 78. Her run started in 1976. She said the reason is simple. She has one career goal she still has not reached. She did not say what that goal is. The Independent picked up her public promise to keep playing Dr. Marlena Evans. Hall holds a rare mark. She has been crucial to the show's engine for more than fifty years. No exit date is scheduled. She just keeps going to work.