Winfrey to announce Friday show will end in 2011 (AP)

Chicago talk show and grew over two decades into the foundation of a media empire worth billions, will end its run in 2011 after 25 seasons on the air, Winfrey's production company said Thursday night.

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Winfrey, who from a seat on the couch of her set in Chicago's West Loop neighborhood became a billionaire and one of the most powerful women in entertainment, plans to announce the final date for her show during a live broadcast on Friday, said Harpo Productions Inc . A Harpo spokeswoman declined to comment Thursday when asked if Oprah's decision to end the show meant she planned to retire, or would move her broadcasting efforts onto a long-rumored Oprah network.

Full Story: Winfrey to announce Friday show will end in 2011 (AP)