Here are the final broadcast ratings for Saturday, March 17, 2018.
Finals Update: NCAA Basketball (1.9, +0.2) adjusted up. 'Dateline' (0.4, -0.2), a repeat of 'Deception' (0.3, -0.1), and a repeat of 'Superstore' (0.2, -0.1) adjusted down. 
| 
Time | 
Show | 
18-49 Rating | 
 Total Viewers  (In Millions) | 
| 
8:00pm | 
NCAA Basketball Tournament (CBS) | 
1.9 | 
6.85 | 
| 
20/20 (R) (ABC) | 
0.5 | 
3.06 | |
| 
MasterChef Junior (R) (FOX) | 
0.3 | 
1.26 | |
| 
Will & Grace (R) (NBC) | 
0.2 | 
1.48 | |
| 
8:30pm | 
Superstore (R) (NBC) | 
0.2 | 
0.90 | 
| 
9:00pm | 
Dateline NBC (NBC) | 
0.4 | 
2.40 | 
| 
Deception (R) (ABC) | 
0.3 | 
2.08 | |
| 
Showtime at the Apollo (R) (FOX) | 
0.3 | 
1.46 | |
| 
10:00pm | 
SNL Vintage (NBC) | 
0.6 | 
2.32 | 
| 
For the People (R) (ABC) | 
0.3 | 
1.95 | |
| 
10:30pm | 
48 Hours (CBS) | 
0.9 | 
4.06 | 
| 
11:30pm | 
Saturday Night Live (NBC) | 
1.9 | 
On broadcast, CBS's airing of the NCAA Tournament (1.7) easily topped primetime. And, a 10:30 airing of '48 Hours' (0.9 posted an above-average result. 
NBC had an anemic repeat of recently-renewed 'Will & Grace' (0.2). Fortunately, an encore of 'Superstore' (0.3), an original 'Dateline' (0.6), and 'SNL Vintage' (0.6) performed better. At 11:30, 'SNL'rose two-tenths from last week with host Bill Hader.
ABC had a repeat of '20/20' (0.5) leading into pilot repeats of 'Deception' (0.4) and 'For the People' (0.3). 
Fox had repeats of 'MasterChef Junior' (0.3) and 'Showtime at the Apollo' (0.3).

