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Average number of Americans who view her show every week.<br>
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<i>Photo: Thousands of fans watch the taping of "The Oprah Winfrey Show" along Michigan Avenue in Chicago during the kickoff for Winfrey's 24th season Sept. 8, 2009. </i>

40 million

( David Banks / Associated Press )

Average number of Americans who view her show every week.

Photo: Thousands of fans watch the taping of "The Oprah Winfrey Show" along Michigan Avenue in Chicago during the kickoff for Winfrey's 24th season Sept. 8, 2009.

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40 million