Special to the Director's Cut Blog By DAVID BAUDER AP Television Writer NEW YORK - Some weeks NBC must wish it could start prime time a couple of hours earlier. The network's "Nightly News" broadcast with Brian Williams averaged 9.1 million viewers over five days last week, clearly outdistancing rivals at ABC and CBS. The problem for NBC is that it also beats virtually everything the network shows in prime time. Take away Sunday night football and its preview shows and the most-watched NBC show last week was "Law & Order: SVU," with 7.3 million viewers. "Harry's Law" had 7.2 million, Nielsen said. NBC has moved Williams to prime time once a week, with his newsmagazine "Rock Center" on Mondays. Viewership has yet to catch up with its content, with 3.9 million people watching Bob Costas interview disgraced Penn State assistant football coach Jerry Sandusky last week. In prime time, CBS is the king - sometimes to starlin...