Primetime Preliminary Fast National Nielsen Data
(includes all DVR playback through 3:00 am)

Here are the highlights of the 12 ad-sustained programs that aired in primetime on the broadcast networks last night (9/15/17):

CBS (4.752 million viewers, #1; adults 18-49: 0.8, #T1) once again got a boost on Friday with a special "Big Brother 19" (4.941 million viewers, #1; adults 18-49: 1.2, #1) followed by "The 11th Annual ACM Honors" (4.658 million viewers, #3; adults 18-49: 0.6, #T4).

NBC (4.220 million viewers, #2; adults 18-49: 0.8, #T1) however shared the demo crown with its duo of "America's Got Talent" (4.000 million viewers, #4; adults 18-49: 0.7, #3) and "Dateline NBC" (4.659 million viewers, #2; adults 18-49: 0.9, #2).

Next up was ABC (3.303 million viewers, #3; adults 18-49: 0.6, #3) with a repeat "Shark Tank" (3.509 million viewers, #5; adults 18-49: 0.6, #T4), a new "Primetime: What Would You Do?" (3.009 million viewers, #7; adults 18-49: 0.6, #T4) and the 40th season premiere of "20/20" (3.391 million viewers, #6; adults 18-49: 0.6, #T4).

Meanwhile, FOX (1.361 million viewers, #5; adults 18-49: 0.4, #4) offered up encores of "MasterChef" (1.427 million viewers, #9; adults 18-49: 0.4, #T8) and "Beat Shazam" (1.294 million viewers, #12; adults 18-49: 0.4, #T8).

And finally, a new "Masters of Illusion" (1.478 million viewers, #8; adults 18-49: 0.3, #T10) and second runs of "Masters of Illusion" (1.355 million viewers, #11; adults 18-49: 0.3, #T10) and "Penn & Teller: Fool Us" (1.399 million viewers, #10; adults 18-49: 0.3, #T10) rounded out the night for The CW (1.408 million viewers, #4; adults 18-49: 0.3, #5).

Week-to-week changes (adults 18-49):
0.00% - Dateline NBC
0.00% - Primetime: What Would You Do?
0.00% - Masters of Illusion
-14.29% - Big Brother 19 (vs. 8/18/17)
-14.29% - 20/20

Year-to-year changes (adults 18-49):
+9.09% - The 11th Annual ACM Honors (vs. Hawaii Five-0/Blue Bloods (Repeats))
0.00% - Dateline NBC
0.00% - Primetime: What Would You Do? (vs. Shark Tank (Repeat))
0.00% - Big Brother 19
-14.29% - 20/20
-25.00% - Masters of Illusion

In late-night metered market ratings (via NBC's press release):

· In Nielsen's 56 metered markets, household results were: "The Tonight Show Starring Jimmy Fallon," 2.3/6; "Late Show with Stephen Colbert," 1.6/4 with an encore; and ABC's "Jimmy Kimmel Live," 1.6/4 with an encore.

· In the 25 markets with Local People Meters, adult 18-49 results were: "The Tonight Show Starring Jimmy Fallon," 0.7/4; "Late Show," 0.3/2 with an encore; and "Jimmy Kimmel Live," 0.4/3 with an encore.

· From 12:35-1:05 a.m. ET, ABC's "Nightline" averaged a 1.2/4 in metered-market households and a 0.3/2 in 18-49 in the Local People Meters.

· From 12:35-1:35 a.m. ET, ratings were: "Late Night with Seth Meyers," 1.2/4 in metered-market households with an encore; CBS's "Late Late Show," 0.9/3 with an encore. In the 25 markets with Local People Meters, averages were: "Late Night," 0.4/3 in 18-49 with an encore; "Late Late Show," 0.2/2 with an encore.

Here are the highlights of the 13 ad-sustained programs that aired in primetime on the broadcast networks one year ago (9/16/16):

CBS (4.824 million viewers, #1; adults 18-49: 0.8, #T1) was the most-watched network on Friday with its mix of "Big Brother 18" (4.681 million viewers, #2; adults 18-49: 1.2, #1), "Hawaii Five-0" (4.370 million viewers, #3; adults 18-49: 0.5, #T7) and "Blue Bloods" (5.422 million viewers, #1; adults 18-49: 0.6, #T5).

NBC (3.455 million viewers, #2; adults 18-49: 0.8, #T1) then shared in the demo honors with "American Ninja Warrior" (3.327 million viewers, #7; adults 18-49: 0.8, #3) and "Dateline NBC" (3.713 million viewers, #6; adults 18-49: 0.9, #2).

Next up was ABC (3.417 million viewers, #3; adults 18-49: 0.6, #3) and its lineup of "Last Man Standing" (3.754 million viewers, #5; adults 18-49: 0.5, #T7), "Dr. Ken" (2.824 million viewers, #9; adults 18-49: 0.5, #T7), "Shark Tank" (3.114 million viewers, #8; adults 18-49: 0.6, #T5) and "20/20" (3.850 million viewers, #4; adults 18-49: 0.7, #4).

Meanwhile, FOX (1.854 million viewers, #4; adults 18-49: 0.5, #4) offered up an encore of "MasterChef" (1.854 million viewers, #10; adults 18-49: 0.5, #T7).

And finally, a new "Masters of Illusion" (1.503 million viewers, #13; adults 18-49: 0.4, #T11), a repeat "Masters of Illusion" (1.557 million viewers, #12; adults 18-49: 0.3, #13) and the season finale of "Penn & Teller: Fool Us" (1.779 million viewers, #11; adults 18-49: 0.4, #T11) closed out the night on The CW (1.654 million viewers, #5; adults 18-49: 0.4, #5).

Week-to-week changes (adults 18-49):
+33.33% - Masters of Illusion
0.00% - 20/20
0.00% - Penn & Teller: Fool Us
-20.00% - Big Brother 18 (vs. 8/19/16)
-25.00% - Dateline NBC

Year-to-year changes (adults 18-49):
+140.00% - Big Brother 18 (vs. Elementary (Repeat))
0.00% - 20/20
-20.00% - Masters of Illusion
-20.00% - Penn & Teller: Fool Us (vs. Penn & Teller: Fool Us (Repeat))
-25.00% - Dateline NBC

In late-night metered market ratings (via NBC's press release):

· In Nielsen's 56 metered markets, household results were: "The Tonight Show Starring Jimmy Fallon," 2.4/6; "Late Show with Stephen Colbert," 1.8/4; and ABC's "Jimmy Kimmel Live," 1.5/4 with an encore.

· In the 25 markets with Local People Meters, adult 18-49 results were: "The Tonight Show Starring Jimmy Fallon," 0.8/4; "Late Show," 0.3/2; and "Jimmy Kimmel Live," 0.4/2, with an encore.

· From 12:35-1:05 a.m. ET, ABC's "Nightline" averaged a 1.1/4 in metered-market households and a 0.3/2 in 18-49 in the Local People Meters.

· From 12:35-1:35 a.m. ET, "Late Night with Seth Meyers" (1.1/4 in metered-market households with an encore) beat CBS's "Late Late Show" (1.0/3 with an encore). In the 25 markets with Local People Meters, "Late Night" (0.4/3 in 18-49 with an encore) topped "Late Late Show" (0.2/1 with an encore).

· At 1:35 a.m., "Last Call with Carson Daly" averaged a 0.6/3 in metered-market households with an encore and a 0.2/2 in adults 18-49 in the 25 markets with local people meters.

Source: Nielsen Media Research