If you thought a repeat of Two and a Half Men might help Heroes’ chances, you were wrong. Last night, the wilting NBC program once again saw its smallest audience to date. That poor performance led into a series low for Medium as well.

8pm

• Dancing with the Stars (20.2 million, 4.9/13 in 18-49) stumbled by 900,000.
• House* (7.7 million, 2.6/7) sent 5.1 million home.
• A How I Met Your Mother original (7.4 million, 2.9/8) didn’t do as well as The Big Bang Theory; a HIMYM repeat (2.6/7) turned in 6.9 million.
• Chuck (2.1/6) registered 6.1 million.
• Gossip Girl (2.2 million, 1.0/3) remained steady.

9pm

• Two and a Half Men* (3.5/9 in 18-49) was the top scripted program of the hour.
• 24 (10.3 million, 3.4/8) lost 1 million.
• Rules of Engagement (9.4 million, 3.4/8) gave up 2 million.
• Heroes (6.5 million, 2.9/7) was down 100,000 from its last original.
• One Tree Hill (2.3 million, 1.1/3) did the same as before.

10pm

• CSI: Miami (13.5 million, 4.0/10 in 18-49) picked up 100,000.
• Castle (9.8 million, 2.2/7) fell by 1.7 million.
• Medium (6.6 million, 2.2/6) shrunk by a 1/2 million.

*denotes repeat

(You can review last Monday’s ratings here.)