P:NW's numbers are just under what the Monday scripted shows got. Which is surprising given the Sat timeslot. But those Saturday night movies typically get close to 2 million viewers. It's a wonder the network left both shows there as long as they did.
And there you have the real problem. People are always blaming the networks for cancelling the good shows and airing the schlock, but the fact is, the schlock gets a much huger audience than the good stuff. Mindlessness is what the majority of television viewers want. And any network dependent on ratings and ad revenues to stay in business is trapped by that.