CBS
FOX
ABC
NBC
CW
Yes that was a series high for TBBT and I loved the Fox/Firefly joke
. On another note here is the superbowl ratings the so called most watched tv show in history though I think FIFA world Cup would have something to say about that...
How I Met Your Mother - 10.11 million & 3.8/11
Accidentally on Purpose - 9.23 million & 3.4/8
Two and a Half Men - 17.56 million & 5.7/13
The Big Bang Theory - 16.20 million & 6.0/14
CSI: Miami - 13.46 million & 3.9/10
FOX
House - 13.55 million & 5.1/13
24 - 10.18 million & 3.2/7
ABC
The Bachelor: On The Wings of Love (2 hour) - 12.33 million & 4.1/10
Castle - 9.48 million & 2.5/7
NBC
Chuck - 6.61 million & 2.2/6
Heroes - 4.41 million & 2.0/5
The Jay Leno Show - 4.31 million & 1.2/3
CW
One Tree Hill - 2.22 million & 1.1/3
Life Unexpected - 2.01 million & 0.6/2
Yes that was a series high for TBBT and I loved the Fox/Firefly joke

106.48 million with the lead out show Undercover Bones scoring 38.65 million viewers.