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Arts and Entertainment Editor Bob Sokolsky says one doesn't always have to be good. Being lucky is often sufficient.

He cites Conan O'Brien as an example, noting that the new "Tonight" show host dodged a bullet when he became fascinated by the way a dummy of actor Henry Winkler was displayed. So fascinated that he took the dummy into a rest room, posing it by an obvious fixture

However, Sokolsky says, Winkler did not create too much of a fuss because he had already been overshadowed by rival host David Letterman, still taking heat for a bad joke that used Sarah Palin's 14-year old daughter as a punch line.

Sokolsky note that such situations have always existed, especially on live TV, and he names similar situations involving Jack Paar and even Kate Smith.

But he wonders whether O'Brien and Letterman learned anything from all this and if they realize they may not be able to sidestep so easily if another barrage is fired their way.