NBCUniversal defended the talk show host Ryan Seacrest against sexual harassment allegations on Tuesday and said he would not be removed from Academy Awards coverage on the entertainment network E!, where discussion of sexual misconduct in Hollywood is expected to loom large.

The allegations, which first surfaced in November, were made by Mr. Seacrest’s former personal stylist, Suzie Hardy, who worked with him between 2007 and 2013 while he was employed by E! News, a network owned by NBCUniversal.

Ms. Hardy’s lawyer said that at various times while she worked with Mr. Seacrest he asked her inappropriate sexual questions, slapped her buttocks, gave her a bear hug while wearing only his underwear, “forced himself on top” of her and grabbed her crotch.

Mr. Seacrest has publicly denied her claims, including in a Feb. 5 essay for The Hollywood Reporter titled, “What Happened After I Was Wrongly Accused of Harassment.”