From The Hollywood Reporter:
“Big Bang Theory” was down 9% (8.7 million, 3.1/9). Following last week’s record-setting episode, “How I Met Your Mother” dropped 11% (9.7 million, 4.0/11) to still garner a quality number. “Two and a Half Men” was up a notch (14.4 million, 5.3/13) . “Christine” went out on a high note, its season finale up 16% week to week (12.4 million, 4.4/11). “CSI: Miami” (million, 4.8/12) was down a tick from last week’s return to originals.
Not ideal [the numbers are slightly lower than the ones for "No Tomorrow," meaning that the stunt-casting bump doesn't seem to have had a long-term effect], but still great news – “No Tomorrow,” “Ten Sessions,” and “The Bracket” have been the show’s most-watched episodes since February 2007.