Bill O'Reilly is one of the worst interviewers that I have had the displeasure of seeing on television. Constantly, he has no idea what he is talking about. He regularly talks over the people he is "interviewing" (and I'm not just talking about when segments are over time). He asks questions and then does not give the other person/people the opportunity to answer. He does not do the necessary research beforehand to have a substantive discussion.
In other words, he fits right in at Fox.