LOS ANGELES (Reuters) - Fox News Channel's star host Bill O'Reilly has canceled a series of TV interviews to promote his new children's book days after a former producer accused him in a lawsuit of sexual harassment, his publisher said on Monday.The normally outspoken conservative commentator scrapped appearances that had been scheduled for Friday on ABC's "The View" and HBO's "Real Time with Bill Maher," and for Monday on CBS' "The Early Show," Harper Entertainment spokesman Seale Ballenger told Reuters.