How I Met Your Mother, 2 Broke Girls and Hawaii Five-0 were adjusted up a tenth, and Castle was adjusted down two tenths with adults 18-49 versus last night's preliminary ratings. Both repeat hours of Ringer on the CW were also adjusted down a tenth with adults 18-49.
Broadcast primetime final ratings for Monday, October 31, 2011:
| Time | Net | Show | 18-49 rating | Viewers (Millions) |
| 8:00 | CBS | How I Met Your Mother | 4.2/13 | 10.49 |
| FOX | Terra Nova | 2.1/6 | 6.59 | |
| ABC | Scared Shrekless (R) | 1.7/5 | 8.53 | |
| NBC | The Sing-Off (8-10p) | 1.4/4 | 4.40 | |
| CW | Ringer (R) | 0.2/1 | 0.68 | |
| 8:30 | CBS | 2 Broke Girls | 4.3/12 | 10.97 |
| ABC | Dancing with the Stars (8:30-10:01p) | 2.8/7 | 16.29 | |
| 9:00 | CBS | Two and a Half Men | 4.7/12 | 13.90 |
| FOX | House | 2.5/6 | 6.65 | |
| CW | Ringer (R) | 0.2/1 | 0.64 | |
| 9:30 | CBS | Mike & Molly | 3.7/9 | 11.45 |
| 10:00 | CBS | Hawaii Five-0 | 3.0/8 | 10.60 |
| ABC | Castle | 2.7/7 | 12.58 | |
| NBC | Rock Center with Brian Williams (Premiere) | 1.0/3 | 4.14 |
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Nielsen TV Ratings Data: ©2011 The Nielsen Company. All Rights Reserved.
