For a round-up of how The Big Bang Theory has performed in various ratings over the last week, head over to our forums to read the weekly update from Rick K.

CBS IS NUMBER ONE IN ADULTS 18-49 AND ADULTS 25-54 ON THE FIRST MONDAY OF THE 2008-2009 SEASONCBS Wins Premiere Monday in Adults 18-49 For the First Time Since 2002.The Second Season Premiere of "Big Bang Theory" Notches Its Best First Run 8:00 PM Deliveries in Viewers and Adults 18-49. CBS comedies achieved several high water marks, including BIG BANG THEORY with its most watched 8:00 PM telecast ever, HOW I MET YOUR MOTHER with its best ever season premiere in adults 18-49 and TWO AND A HALF MEN with its strongest premiere in adults 18-49 since 2004.At 8:00 PM, BIG BANG THEORY (P) was second in households (5.7/09), viewers (9.36m), adults 25-54 (4.2/11) and adults 18-49 (3.6/10).

We have more information on the ratings for last night's episode, "The Bad Fish Paradigm". It was second in the slot in total viewers and viewers aged 18-49.

This is a new feature on the site called Ratings Recap, each week I will post a condensed and simplified look at the ratings so even I may finally understand them.

The hour-long series finale of The Big Bang Theory delivered the show's biggest audience in over five years.