Just two of the networks’ shows were in originals last night — Rules of Engagement on CBS and American Idol on FOX. The finalists were announced on Idol so, as expected, the reality series dominated the night.

8pm
American Idol
– 25.263 million viewers
– 13.8/23 HH
– 8.2/24 A18-49 (+13.9%)

The Big Bang Theory (r)
– 9.117 million viewers
– 5.6/9 HH
– 2.5/8 A18-49

Wipeout (r)
– 5.000 million viewers
– 2.9/5 HH
– 1.4/4 A18-49

The Office (r)
– 2.881 million viewers
– 2.0/3 HH
– 1.1/4 A18-49

The Vampire Diaries (r)
– 1.131 million viewers
– 0.8/1 HH
– 0.5/1 A18-49
– 0.5/2 A18-34
– 0.5/2 W18-34

8:30pm
Rules of Engagement
– 8.239 million viewers
– 5.0/8 HH
– 2.4/7 A18-49 (-14.3%)

The Office (r)
– 2.899 million viewers
– 1.9/3 HH
– 1.3/4 A18-49

9pm
CSI (r)
– 8.767 million viewers
– 5.6/9 HH
– 1.9/5 A18-49

Grey’s Anatomy (r)
– 3.981 million viewers
– 2.8/4 HH
– 1.2/3 A18-49

The Office (r)
– 3.128 million viewers
– 2.0/3 HH
– 1.5/4 A18-49

Nikita (r)
– 1.108 million viewers
– 0.8/1 HH
– 0.3/1 A18-49
– 0.3/1 A18-34
– 0.4/1 W18-34

9:30pm
The Office (r)
– 3.094 million viewers
– 2.0/3 HH
– 1.5/4 A18-49

10pm
The Mentalist (r)
– 10.425 million viewers
– 6.7/12 HH
– 1.9/6 A18-49

Private Practice (r)
– 3.026 million viewers
– 2.2/4 HH
– 0.9/3 A18-49

The Office (r)
– 2.983 million viewers
– 1.9/3 HH
– 1.4/4 A18-49

10:30pm
The Office (r)
– 2.676 million viewers
– 1.7/3 HH
– 1.2/4 A18-49

Raw ratings data copyright Nielsen, courtesy Travis Yanan.

Image courtesy FOX.