With so many East Coast stations going to continuous local news and with so many homes likely to be without power tonight, don't be surprised to see a bunch of reruns in the lineup. From the LAT:
The networks themselves are not yet sure how many of their affiliates in regions affected by Hurricane Sandy are currently preempting programming or are planning to later this afternoon. The networks are discussing whether, with so many stations on the East Coast potentially going with local coverage or perhaps losing power if the storm lives up to expectations, they should rethink programming plans for the evening. CBS, NBC and ABC all have new episodes of shows scheduled for Monday night.
As it is, some of the schedule might be eaten into by news reports. CBS, ABC, and NBC will extend their evening newscasts to an hour.