Actress Valerie Harper attends NBC's taping of 'Betty White's 90th Birthday: A Tribute to America's Golden Girl' at Millennium Biltmore Hotel on January 8, 2012 in Los Angeles, California.
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NEW YORK -- Valerie Harper has agreed to give a first-person account of her battle with terminal cancer to NBC News.
The network says Meredith Vieira will host the documentary, which will air in prime time. No airdate has been set.
RELATED: Mary Tyler Moore's 'Rhoda' diagnosed with terminal brain cancer (http://bit.ly/13TsehA)
The actress gained fame playing Rhoda Morgenstern on television's "The Mary Tyler Moore Show" and "Rhoda." She announced this year that she has been diagnosed with brain cancer. She was given as little as three months to live when diagnosed March 6, which she has already exceeded.
NBC says the 73-year-old Harper has allowed cameras to follow her since she was diagnosed.
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