The investigation comes after a complaint was phoned in to the network's corporate hotline last week by Wendy Walsh, a former regular guest on Fox's "The O'Reilly Factor" TV show, and her lawyer, Lisa Bloom, which the two posted to YouTube. "21st Century Fox investigates all complaints and we have asked the law firm Paul Weiss to continue assisting the company in these serious matters," the company said in a statement. Walsh, a psychologist and radio host, said O'Reilly reneged on an offer to secure her a lucrative job on the network after she declined his invitation to join him in his hotel

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