I completely agree with you. As a matter of fact, I think it’s a form of vote tampering because their coverage has an effect on the voters who haven’t voted yet.
I wonder if anyone’s ever done a study on the number of people actually don’t go vote in the West (Alaska, Hawaii) because the news stations “call” the vote?
It would be very interesting to see those numbers if compared to years gone by when the instantaneous news wasn’t broadcast with exit polling on election night.