It looks like broadcast news stations in DC are firing all their old anchors. The "NBC 2.0" initiative is a program by NBC Universal to cut costs ($750 million) and 5% of its positions. Because people watch news mostly as habit, news stations have little pressure to keep top personalities on the air or pay them more than others to come back.

The article doesn't mention whether these changes are taking place because viewership is down, or management is just getting greedy:

http://www.washingtonpost.com/wp-dyn/content/article
/2006/11/28/AR2006112801784.html?referrer=emailarticle