Over the past 30 years, media mogul and self-made billionaire Oprah Winfrey is best known for redefining the broadcast television talk show and influencing the American media and pop culture landscape with "The Oprah Winfrey Show."

"For 10 years straight [and] every single day, I shook hands with 700 people and I signed 700 autographs," Winfrey said in a recent interview with LinkedIn CEO Jeff Weiner.