Leno to prime time?

Leno is set to take over the 10-11pm time slot beginning in June on NBC. This saves NBC a huge amount of money in a time when money is dwindling for the broadcast networks. I think it's a good move except during reruns. The affiliates with an 11pm news will get hammered on the lead in. I think this will be the model to follow for the big four networks in the coming years