Here's a shock - various media outlets think they overplayed Howard Dean's Iowa scream. A Yahoo article on this topic mentions one group's count of 633 plays over four days by national media alone. Yes, that might be excessive.

Blame, of course, isn't being doled out by those media outlets. They see it as the natural progression of things in our world of multiple 24 hour news outlets and instapunditry. My favorite quote on this is from Andrew Heyward, the president of CBS news, who said that the damage came from "not so much showing the speech again and again, as the kind of collective wisdom that suggested that it was extremely damaging and, to a degree, became a self-fulfilling prophecy."

In other words, we think it's damaging, so we'll run it to the point where everyone else thinks like we do. Apparently, the problem with the media isn't liberal or conservative bias, but idiot bias.