O'Reilly Says He's Ready to Fight Charges NEW YORK - Fox News Channel's Bill O'Reilly made a TV talk show appearance on what he said was "the worst day of my life" Thursday, vowing to fight sexual harassment charges by one of his producers.    Accuser Andrea Mackris spoke publicly for the first time, saying she felt threatened by her former boss, who filed a lawsuit charging the woman and her lawyer with extortion...