Preliminary Ratings: Wednesday 12/20/2017
The season finale and reunion show for SURVIVOR dominated the mostly rerun night in the ratings. The two-hour finale of SURVIVOR was the #1 show of the evening, grabbing 8.7 million viewers and a 1.9 rating in Adults 18-49. That is on par with last fall's finale, with a slight loss in total viewers. The Reunion show retained 7.3 million viewers and 85% of the demo. It is up by 900k in total viewers and up 23% in the demo, from last fall's reunion.The other four nets were in encores, with NBC doing the best of the rest. ABC takes third, with FOX topping ABC in the A18-34 demographic.
Preliminary L+SD Network Averages:
| Total viewers | A18-34 | A18-49 | A25-54 | |
| ABC | 2.70 million | 0.3 | 0.6 | 0.8 |
| CBS | 7.80 million | 1.1 | 1.7 | 2.3 |
| CW | 1.30 million | 0.2 | 0.3 | 0.4 |
| FOX | 1.90 million | 0.4 | 0.5 | 0.6 |
| NBC | 3.50 million | 0.6 | 0.9 | 1.1 |
| Time | Net | Program | P2* | A18-34 | A18-49 | A25-54 |
| 8:00 | ABC | The Goldbergs [R] | 3.40 | 0.4 | 0.7 | 1.0 |
| 8:30 | ABC | Speechless[R] | 2.80 | 0.4 | 0.7 | 0.9 |
| 9:00 | ABC | Modern Family [R] | 3.00 | 0.4 | 0.7 | 1.0 |
| 9:30 | ABC | American Housewife [R] | 2.50 | 0.3 | 0.6 | 0.8 |
| 10:00 | ABC | Match Game [R] | 2.30 | 0.2 | 0.4 | 0.6 |
| 8:00 | CBS | Survivor (SF) | 8.70 | 1.2 | 1.9 | 2.5 |
| 10:00 | CBS | Survivor Reunion | 7.30 | 1.0 | 1.6 | 2.2 |
| 8:00 | CW | Grandma/Reindeer [R] | 1.40 | 0.2 | 0.3 | 0.5 |
| 9:00 | CW | Top 12 Christmas Movies | 1.10 | 0.2 | 0.2 | 0.3 |
| 8:00 | FOX | Empire [R] | 2.10 | 0.4 | 0.5 | 0.7 |
| 9:00 | FOX | Star [R] | 1.60 | 0.3 | 0.4 | 0.5 |
| 8:00 | NBC | Will & Grace [R] | 3.80 | 0.3 | 0.7 | 1.0 |
| 9:00 | NBC | Movie: Pitch Perfect | 3.40 | 0.6 | 0.9 | 1.1 |
* - viewers in millions
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