The Oprah Winfrey Show's final season has arrived—and the stakes are higher than ever. As the Harpo Studios production staff returns from their summer hiatus, Oprah reflects on her 25 history-making years on the air. "We've always known that this was more than a television show, that this really is a platform for something that's bigger than television," she says. "We've got to raise the bar higher than it's ever been. And I believe we're going to do it."

Watch Oprah reflect on Harpo's history