Oreilly factor:  comedy show or significant source for news?   stance: oreilly factor is a great source for daily news updates:
Bill O'Reilly has an opinion. Sometimes his opinion seems moderately justified, sometimes not. Similarly, someone like Keith Olberman also has opinions which are sometimes moderately justified and sometimes not. Each can wield structured argumentation, and each will occasionally stoop to more base forms of persuasion. It's all permissible because the main audience is content in just winking at the sleight of hand.