TV insiders have been poring over exit polls all day, and they know more than they are saying on TV right now. That's because the TV honchos have decided that "calling" races based on exit polls before the voting actually stops in key states will only alienate the voters and the politicians. So they have agreed that they won't declare the winners until the results are in, state by state.

But reading between the lines, the commentators are talking more brightly about Democratic prospects than Republican ones in the House, indicating that they are seeing exit polls going in the Democratic direction. The tone of the network coverage so far suggests that this will be a big Democratic night, at least in the House.

The Senate situation appears to be much muddier, so the network commentators are being more cautious about that.