The ratings for last night's episode are out. The show continued to build on Two and a Half Men in the adults 18-49 demographic, but only marginally.
The Big Bang Theory was watched by 12.41 million people, placing it second in viewers behind ABC's Dancing with the Stars. The show came first in adults 18-49 with a 4.5/11 rating. Two and a Half Men set a 4.4/11 rating in the same demographic.
, 01:33 14th Nov 2009.
, 17:32 10th Nov 2009.
, 16:05 10th Nov 2009.
, 14:01 10th Nov 2009.| Title | Date Posted | Category |
| Episode 3.23 Ratings | 25th May 2010 | Show |
| Episode 3.22 Ratings | 18th May 2010 | Show |
| Episode 3.21 Ratings | 11th May 2010 | Show |
| Episode 3.20 Ratings | 4th May 2010 | Show |
| Episode 3.19 Ratings | 13th April 2010 | Show |