Oprah Gail Winfrey , often known simply as Oprah, is an American talk show host, television producer, actress, author, and philanthropist. She is best known for her talk show, The Oprah Winfrey Show, broadcast from Chicago, which was the highest-rated television program of its kind in history and ran in national syndication for 25 years, from 1986 to 2011. Dubbed the "Queen of All Media", she was the richest African-American of the 20th century, was once the world's only black billionaire, and the greatest black philanthropist in U.S. history. By 2007, she was sometimes ranked as the most influential woman in the world