I am going to have to agree with one very small point in EarlG's post. It does seem to me that the pundits are indeed trying to keep the ratings up. They'll pull some obscure poll showing the Obama's winning by a landslide, then, 3 days later, another obscure poll with McCain surging back. Then, with every obscure poll, they drag 4 talking heads on the show to try to decipher what it all means.
For the record, the remainder of Earl's post is undiluted bovine excrement.