I don't think they need to screen the audiences. After all, would you ever go to a taping for Oprah, the View, Maher, et al? I wouldn't.

>>Good point. For the most part, Fox balances commentators. CNN....ehhh...not so much but they try. The View, Bill Maher, and the like do a 3:1 or 4:1 ratio and shout down the discussion. Olbermann only brings in yes men. Liberals only succeed in winning arguments when they can gang up on others.
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>And the shows like Oprah, the View, Maher, etc. also must screen the audience, or maybe that's just the type people who go to their shows. Then again, they could be overflow from Jerry Springer....