|Grey's Anatomy||-19%||-36%||Grey's Anatomy (2hr)|
|The Big Bang Theory||+4%||9/21/2009 (Mon)||+20%||Survivor|
|$#*! My Dad Says||n/a|
|Community||-42%||9/17/2009 (9:30)||+29%||SNL Weekend Update|
|30 Rock||-13%||10/15/2009 (9:30)||+44%||Parks & Recreation|
|The Apprentice||n/a||-18%||The Jay Leno Show|
HOW TO READ THIS: The SHOW column refers to the change from last season's premiere of a show to this season's premiere of the same show. If last season's premiere was outside of premiere week or on a different night, I give you the date. The SLOT column refers to the change within that timeslot from last year's premiere week to this year's, regardless of what's airing there. If something different aired there last year, I denote what it is.