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 (5/26/17):

NBC (4.033 million viewers, #2; adults 18-49: 0.7, #T1) was the demo champ on Friday with the season finale of "First Dates" (3.479 million viewers, #5; adults 18-49: 0.7, #T2) and a two-hour "Dateline NBC" (4.310 million viewers, #4; adults 18-49: 0.8, #1).

Sharing the top spot was ABC (3.271 million viewers, #3; adults 18-49: 0.7, #T1) and repeats of "Shark Tank" (3.276 million viewers, #7; adults 18-49: 0.7, #T2), another "Shark Tank" (3.163 million viewers, #8; adults 18-49: 0.7, #T2) and "20/20" (3.373 million viewers, #6; adults 18-49: 0.6, #T5).

Next up was CBS (5.043 million viewers, #1; adults 18-49: 0.6, #T3) with its trio of "MacGyver" (4.560 million viewers, #3; adults 18-49: 0.5, #10), "Hawaii Five-0" (4.956 million viewers, #2; adults 18-49: 0.6, #T5) and "Blue Bloods" (5.613 million viewers, #1; adults 18-49: 0.6, #T5).

Meanwhile, FOX (1.952 million viewers, #4; adults 18-49: 0.6, #T3) served up encores of "Beat Shazam" (2.092 million viewers, #9; adults 18-49: 0.6, #T5) and "Love Connection" (1.813 million viewers, #10; adults 18-49: 0.6, #T5).

And finally, The CW (1.444 million viewers, #5; adults 18-49: 0.3, #5) closed out the evening with repeats of "Penn & Teller: Fool Us" (1.437 million viewers, #12; adults 18-49: 0.3, #12) and another "Penn & Teller: Fool Us" (1.450 million viewers, #11; adults 18-49: 0.4, #11).

Week-to-week changes (adults 18-49):
0.00% - First Dates
-11.11% - Dateline NBC

Year-to-year changes (adults 18-49):
0.00% - First Dates (vs. Caught on Camera with Nick Cannon)
-11.11% - Dateline NBC (vs. Dateline NBC (Repeat))

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

TBA

Here are the highlights of the 14 ad-sustained programs that aired in primetime on the broadcast networks one year ago (5/27/16):

NBC (4.291 million viewers, #2; adults 18-49: 0.8, #T1) claimed the top demo spot on Friday with the season finale of "Caught on Camera with Nick Cannon" (3.316 million viewers, #8; adults 18-49: 0.7, #T3) and two-hour repeat of "Dateline NBC" (4.778 million viewers, #2; adults 18-49: 0.9, #1).

ABC (4.006 million viewers, #3; adults 18-49: 0.8, #T1) then shared in the demo honors with night two of "500 Questions" (4.427 million viewers, #3; adults 18-49: 0.7, #T3) followed by a repeat "Shark Tank" (3.762 million viewers, #7; adults 18-49: 0.8, #2) and a new "20/20" (3.830 million viewers, #6; adults 18-49: 0.7, #T3).

Next up was CBS (4.512 million viewers, #1; adults 18-49: 0.6, #3) and its repeat trio of "Undercover Boss" (4.098 million viewers, #5; adults 18-49: 0.6, #T6), "Hawaii Five-0" (4.298 million viewers, #4; adults 18-49: 0.5, #8) and "Blue Bloods" (5.142 million viewers, #1; adults 18-49: 0.6, #T6).

Meanwhile, FOX (1.154 million viewers, #5; adults 18-49: 0.4, #4) offered up second runs of "The Simpsons" (1.455 million viewers, #12; adults 18-49: 0.4, #T9), another "The Simpsons" (1.286 million viewers, #13; adults 18-49: 0.4, #T9) and "Coupled" (0.938 million viewers, #14; adults 18-49: 0.3, #T12).

And finally, a new "Masters of Illusion" (1.563 million viewers, #9; adults 18-49: 0.4, #T9) and repeats of "Masters of Illusion" (1.512 million viewers, #11; adults 18-49: 0.3, #T12) and "Penn & Teller: Fool Us" (1.534 million viewers, #10; adults 18-49: 0.3, #T12) on The CW (1.536 million viewers, #4; adults 18-49: 0.3, #5) closed out the night.

Week-to-week changes (adults 18-49):
+16.67% - Caught on Camera with Nick Cannon (vs. 5/13/16)
0.00% - Masters of Illusion
-41.67% - 20/20

Year-to-year changes (adults 18-49):
-20.00% - Masters of Illusion (vs. Whose Line Is It Anyway?)
-22.22% - 500 Questions (vs. Shark Tank (Repeat))
-30.00% - Caught on Camera with Nick Cannon (vs. America's Got Talent (Repeat))
-30.00% - 20/20

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

TBA

Source: Nielsen Media Research