CBS won with How I Met Your Mother (3.3), Rules of Engagement (3.2), Two and a Half Men (4.6), The Big Bang Theory (5.2), and CSI: Miami (3.3).
ABC was second with Dancing With the Stars (4.0) and Castle (2.6).
Fox was third with House (3.6) and 24 (2.7). All of a sudden, House is looking vulnerable.
NBC was last with Chuck (1.9), a repeat of Law & Order (1.2), and Law & Order (1.7). Chuck was the same week, but indications are that the show is still good for renewal. You have to wonder how low the budget is if 1.9 is still a safe number.