Zachary Levi and Yvonne Strahovski by Trae Patton/NBC Zachary Levi and Yvonne Strahovski by Trae Patton/NBC

Here's how Monday played out this week:

8 pm/ET
Dancing with the Stars was the night's most-watched program, averaging 19.28 million total viewers (an eight percent dip) over its two-hour run. CBS' Big Bang (8.7 mil, down 650K) and Mother (8.8 mil, down 900 thou) placed second, followed by Chuck, which kicked off its sophomore run with 6.6 mil. That's off 29 percent from the NBC series' launch, yet on par with its latest airing (in January).

Terminator (5.33 mil) lost another 480K, while Gossip Girl (3.54 mil) gained 190 thou.

9 pm
Trailing DWTS, Two and a Half Men did 13.76 mil, shedding a million-plus from its season premiere; lead-out Worst Week (9.3 mil) in turn dropped 15 percent from its debut. Heroes (9.34 mil, down 550K) and a good episode of Prison Break (5.25 mil, down 680 thou) both took hits, while One Tree Hill (3.42 mil) saw a 320K increase.

10 pm
CSI: Miami (14.3 mil) dominated, albeit with a 15 percent smaller audience that tuned in for its premiere. (Yes, Worst Week, all eyes are on you.) Boston Legal (9.8 mil) was up 380 thou from its opener. NBC's Life returned from a long, long absence to 6.9 mil viewers, a 32 percent plunge from its series bow but only a little shy of its most recent (December 2007!) outing.