They've been trying to prevent him from getting exposure all along, including when he was in the debates and they refused to ask him any questions.

While campaigning out in public, I encounter more people who have never heard of him (and who are very impressed with him when they do get a chance to read and hear what he has to say) than I do people who know about him and don't like what they hear. This is a product of the media blackout they've been waging against him all along. It's very calculated. Take for instance when ABC refused to publish the results of their own poll after Kucinich mopped the floor with the other candidates. Kucinich is the only one who works for the voters and not for the moneyed special interests.