Here are the final broadcast ratings for Friday, September 15, 2017.
Finals Update: All of the CW (0.2/0.2/0.2) and the ACM Honors (0.6) adjusted down.
| 
Time | 
Show | 
18-49 Rating | 
    Total Viewers     (In Millions) | 
| 
8:00pm | 
Big Brother (CBS) | 
 1.2 | 
4.89 | 
| 
America’s Got Talent (R) (NBC) | 
 0.7 | 
4.07 | |
| 
Shark Tank (R) (ABC) | 
 0.6 | 
3.53 | |
| 
MasterChef (R) (FOX) | 
 0.4 | 
1.42 | |
| 
Masters of Illusion (CW) | 
 0.2 | 
1.02 | |
| 
8:30pm | 
Masters of Illusion (R) (CW) | 
0.2 | 
0.84 | 
| 
9:00pm | 
11th Annual ACM Honors | 
0.6 | 
4.67 | 
| 
What Would You Do? (ABC) | 
0.6 | 
3.01 | |
| 
Beat Shazam (R) (FOX) | 
0.4 | 
1.24 | |
| 
Penn & Teller: Fool Us (R) (CW) | 
0.2 | 
0.89 | |
| 
10:00pm | 
Dateline NBC (NBC) | 
0.9 | 
4.76 | 
| 
20/20 (ABC) | 
0.6 | 
3.42 | 
(R) = repeat
CBS's drama repeat line-up took the night off in favor of an original Big Brother (1.2). It performed significantly lower than the last times it aired on Friday (1.4 on 8/18/17 and 1.5 on 7/21/17) but was still the top program of the night. It led into the 11th Annual ACM Honors (0.6/0.7) which pulled in acceptable numbers.
ABC had a repeat of Sunday-bound Shark Tank (0.6) leading into steady originals of What Would You Do? (0.6) and 20/20 (0.6).
NBC had a steady Dateline (0.9) leading out of an AGT encore (0.7/0.8).
Fox had repeats of MasterChef (0.4) and Beat Shazam (0.4).
The CW had 0.3s across the board with an original Masters of Illusion and repeats.
CBS's drama repeat line-up took the night off in favor of an original Big Brother (1.2). It performed significantly lower than the last times it aired on Friday (1.4 on 8/18/17 and 1.5 on 7/21/17) but was still the top program of the night. It led into the 11th Annual ACM Honors (0.6/0.7) which pulled in acceptable numbers.
ABC had a repeat of Sunday-bound Shark Tank (0.6) leading into steady originals of What Would You Do? (0.6) and 20/20 (0.6).
NBC had a steady Dateline (0.9) leading out of an AGT encore (0.7/0.8).
Fox had repeats of MasterChef (0.4) and Beat Shazam (0.4).
The CW had 0.3s across the board with an original Masters of Illusion and repeats.

