The first indications of the ratings for The Big Bang Theory Pilot/Premiere last night are out.
The show built on its lead-in, How I Met Your Mother which was 3rd place in the slot. 6.2% of US households watched Big Bang compared to 5.6% for its lead-in. Its lead-out Two and a Half Men was watched by 9.1% of US households. Rules of Engagement kept 88% of Two and a Half Men's audience.
| Title | Date Posted | Category |
| Premiere Ratings - Final Look | 26th September 2007 | Show |
| Premiere Ratings - Fast Affiliate | 25th September 2007 | Show |
| Episode 3.23 Ratings | 25th May 2010 | Show |
| Episode 3.22 Ratings | 18th May 2010 | Show |
| Episode 3.21 Ratings | 11th May 2010 | Show |
