In their first head-to-head matchup since his return, Jay Leno owned David Letterman in 18-49, among others.
Full story:
http://tvbythenumbers.com/2010/03/02/leno-crushes-letterman-in-return/43507
Full story:
http://tvbythenumbers.com/2010/03/02/leno-crushes-letterman-in-return/43507