With her eyes welling with tears, Oprah Winfrey looked directly at her viewers on Friday to explain why she will be ending her show in 2011 after a quarter-century on the air. It was prayer and careful thought that helped her decide, she said. "I love this show. This show has been my life. And I know when it's time to say goodbye."

"Twenty-five years feels right in my bones and feels right in my spirit."

Winfrey offered no specifics about her plans for the future, except to say that she intended to produce the best possible shows during her last 18 months on the air.