Here are the final broadcast ratings for Friday, September 22, 2017.
|  | 
| ABC | 
Finals Update: Masters of Illusion (0.2/0.3) and 20/20 (0.6) adjusted down.
| 
Time | 
Show | 
18-49 Rating | 
    Total Viewers     (In Millions) | 
| 
8:00pm | 
Shark Tank (R) (ABC) | 
 0.6 | 
3.68 | 
| 
America's Got Talent (R) (NBC) | 
 0.6 | 
3.05 | |
| 
MacGyver (R) (CBS) | 
 0.5 | 
4.19 | |
| 
MasterChef (R) (FOX) | 
 0.4 | 
1.42 | |
| 
Masters of Illusion (CW) | 
 0.2 | 
0.89 | |
| 
8:30pm | 
Masters of Illusion (R) (CW) | 
0.3 | 
0.87 | 
| 
9:00pm | 
What Would You Do? (F) (ABC) | 
0.7 | 
3.40 | 
| 
Hawaii Five-0 (R) (CBS) | 
0.5 | 
4.83 | |
| 
Beat Shazam (R) (FOX) | 
0.4 | 
1.24 | |
| 
Penn & Teller: Fool Us (R) (CW) | 
0.3 | 
1.06 | |
| 
10:00pm | 
Dateline NBC (NBC) | 
0.8 | 
4.05 | 
| 
Blue Bloods (R) (CBS) | 
0.6 | 
5.26 | |
| 
20/20 (ABC) | 
0.6 | 
3.40 | 
(R) = repeat
On the final Friday before the fall season, ABC said goodbye to reality staple 'What Would You Do?' (0.7). The series was up a tenth from its last episode. It led out of one last 'Shark Tank' encore (0.7) and an original '20/20'. The latter will return next week alongside the 2-hr premiere of Marvel's Inhumans.
NBC had one more 'AGT' repeat (0.65) leading into a down 'Dateline' (0.8). 
Fox had 0.4s for their repeats of summer shows. 
CBS had repeats of their drama line-up (0.5/0.5/0.6). All 3 will premiere next week.
The CW had more magic show repeats and originals with a shockingly strong 0.4 for a 'Masters of Illusion' repeat at 8:30. 
