Oprah Winfrey

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Whether Lance Armstrong seemed contrite in his confession about doping is up to the viewers, Oprah Winfrey says about her interview with the fallen cyclist. (Harpo Studios Inc. via Associated Press)

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FILE - This combination image made of file photos shows Lance Armstrong, left, on Oct. 7, 2012, and Oprah Winfrey, right, on March 9, 2012. Armstrong plans to admit to doping throughout his career during an upcoming interview with Oprah Winfrey, USA Today reported late Friday, Jan. 11, 2013. (AP Photos/File)

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Oprah Winfrey will broadcast an interview with Paris Jackson, daughter of the late pop icon Michael Jackson, on Sunday. Ms. Winfrey interviewed Paris for "Oprah's Next Chapter," which can be seen on OWN. (Associated Press)

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**FILE** A photo released by Harpo Productions Inc., shows talk-show host Oprah Winfrey and David Zaslav, president and chief executive of Discovery Communications after announcing Tuesday, Jan. 15, 2008, in Chicago the formation of a new joint venture "OWN: The Oprah Winfrey Network." (AP Photo/Harpo Productions Inc., George Burns)

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FILE - In this April 14, 2011 publicity image originally released by OWN, TV personality and media mogul Oprah Winfrey presents at the OWN: Oprah Winfrey Network portion of the Discovery Communications Upfront at Jazz at Lincoln Center in New York. Winfrey says creating her new cable network is turning out to be the climb of her life. "I'm climbing Kilimanjaro," she told advertisers Thursday at a presentation for OWN: The Oprah Winfrey Network. She quickly explained that, for her, Kilimanjaro is the offices of OWN. The network, which launched in January 2011, has struggled to find an audience. It has recently suffered staff layoffs and a management upheaval. (AP Photo/OWN, George Burns) MANDATORY CREDIT: GEORGE BURNS/OWN

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If viewers don't respond to her troubled cable network, Oprah Winfrey says, she will "move on to the next thing" and "always be OK." (CBS via Associated Press)

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Oprah Winfrey comforts Bobbi Kristina Brown, who recalls the strong bond and devastating death of her mother, singer Whitney Houston, in an interview that aired Sunday on the OWN network. (Harpo Inc. via Associated Press)

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Oprah Winfrey

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Oprah Winfrey is shown with host Rosie O'Donnell (left) during the debut of "The Rosie Show," in Chicago in October. Miss Winfrey is tasked with rescuing OWN, the Oprah Winfrey Network, after a disappointing first year. "The Rosie Show" was added to the network's lineup. (Harpo Inc. via Associated Press)

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Oprah Winfrey, whose OWN venture stumbled in its first year, said, "I don't worry about failure. I worry about, 'Did I do all I could do?' (George Burns, OWN via Associated Press)

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Unlike how Oprah Winfrey's embrace of Barack Obama helped his presidential campaign, there are other celebrities who would-be presidents would be wise to avoid, among them Chris “Ludacris” Bridges, Arnold Schwarzenegger, Donald Trump, Sean Penn and Jane Fonda. (Associated Press)

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Oprah Winfrey

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Oprah Winfrey

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** FILE ** In this file photo taken May 7, 2011, provided by Harpo Productions Inc., talk-show host Oprah Winfrey rides in a jeep with fashion designer Ralph Lauren at Lauren's RRL Ranch outside Telluride, Colo. (AP Photo/Harpo Productions, Inc. George Burns, FILE)

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Oprah Winfrey relaxes in her studio office in Chicago on Dec. 18, 1985, following a morning broadcast. Miss Winfrey came to Chicago in 1984, to WLS-TV's "A.M. Chicago." A month later, the show was No. 1 in the market. A year later, it was renamed "The Oprah Winfrey Show." The show, which has taped in Chicago for 25 years, ends May 25. (Photo: Associated Press)

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Maria Shriver appears May 17, 2011, with Oprah Winfrey during a star-studded double-taping of "Surprise Oprah! A Farewell Spectacular" in Chicago. "The Oprah Winfrey Show" is ending its run May 25, after 25 years. (Associated Press)