Barbara Walters, Oprah Winfrey Barbara Walters, Oprah Winfrey

Oprah Winfrey will be the one answering questions when Barbara Walters sits down with the Oprah host before Winfrey leaves to start her own network.

 A Barbara Walters Special: Oprah, The Next Chapter, airing Thursday, Dec. 9 (9/8c on ABC), will look at Winfrey's personal and professional life over the last 25 years.

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Walters, who has known the 56-year-old talk show host since early in her career, will also showcase an exclusive preview of OWN, Winfrey's new network launching on New Year's Day.

The special will be followed by The 10 Most Fascinating People of 2010 at 10/9c.