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

Here are the highlights of the 10 ad-sustained programs that aired in primetime on the broadcast networks last night (10/20/20):

[Note: Fast affiliate ratings are inaccurate for live events.]

FOX (7.223 million viewers, #1; adults 18-49: 1.8, #1) pulled in front on Tuesday thanks to its coverage of the "World Series, Game 1" (7.223 million viewers, #2; adults 18-49: 1.8, #1).

NBC (6.404 million viewers, #2; adults 18-49: 0.9, #T2) was the silver draw with night two of "The Voice" (7.454 million viewers, #1; adults 18-49: 1.0, #3) and a new "Transplant" (4.304 million viewers, #4; adults 18-49: 0.6, #4).

Next up was ABC (3.323 million viewers, #4; adults 18-49: 0.9, #T2) with a new "The Bachelorette" (4.091 million viewers, #5; adults 18-49: 1.1, #2) alongside an encore of "Supermarket Sweep" (1.788 million viewers, #8; adults 18-49: 0.4, #T5).

Meanwhile, CBS (3.558 million viewers, #3; adults 18-49: 0.4, #4) offered up repeats of "NCIS" (4.358 million viewers, #3; adults 18-49: 0.4, #T5) and "FBI" (3.456 million viewers, #6; adults 18-49: 0.4, #T5) plus a new "The FBI Declassified" (2.859 million viewers, #7; adults 18-49: 0.4, #T5).

And finally, The CW (0.551 million viewers, #5; adults 18-49: 0.1, #5) closed out the night with "Swamp Thing" (0.723 million viewers, #9; adults 18-49: 0.1, #T9) and "Tell Me a Story" (0.379 million viewers, #10; adults 18-49: 0.1, #T9).

Week-to-week changes (adults 18-49):
+100.00% - Transplant
0.00% - Tell Me a Story
-15.38% - The Bachelorette
-50.00% - Swamp Thing
-55.56% - The FBI Declassified

Year-to-year changes (adults 18-49):
+22.22% - The Bachelorette (vs. Various)
-31.03% - The Voice (vs. The Voice/This Is Us)
-33.33% - Transplant (vs. New Amsterdam)
-37.93% - World Series, Game 1
-42.86% - The FBI Declassified (vs. NCIS: New Orleans)
-66.67% - Tell Me a Story (vs. Arrow)
-80.00% - Swamp Thing (vs. The Flash)

Here are the highlights of the 14 ad-sustained programs that aired in primetime on the broadcast networks one year ago (10/22/19):

[Note: Fast affiliate ratings are inaccurate for live events.]

FOX (11.583 million viewers, #1; adults 18-49: 2.9, #1) rocketed to the top spot on Tuesday with the coverage of the "World Series, Game 1" (11.583 million viewers, #1; adults 18-49: 2.9, #1).

NBC (6.720 million viewers, #3; adults 18-49: 1.2, #2) then got bumped to second with its usual mix of "The Voice" (7.954 million viewers, #4; adults 18-49: 1.3, #3), "This Is Us" (7.028 million viewers, #5; adults 18-49: 1.6, #2) and "New Amsterdam" (5.179 million viewers, #7; adults 18-49: 0.9, #7).

Next up was CBS (8.858 million viewers, #2; adults 18-49: 0.9, #3) and its trio of "NCIS" (11.031 million viewers, #2; adults 18-49: 1.1, #5), "FBI" (8.819 million viewers, #3; adults 18-49: 0.8, #8) and "NCIS: New Orleans" (6.723 million viewers, #6; adults 18-49: 0.7, #T9).

Meanwhile, ABC (3.417 million viewers, #4; adults 18-49: 0.8, #4) opted for repeats of "It's the Great Pumpkin, Charlie Brown" (4.964 million viewers, #8; adults 18-49: 1.2, #4) and "Toy Story of Terror!" (3.703 million viewers, #9; adults 18-49: 1.0, #6) followed by new episodes of "Mixed-ish" (3.086 million viewers, #10; adults 18-49: 0.7, #T9) and "Black-ish" (2.730 million viewers, #12; adults 18-49: 0.7, #T9) plus the special "The Douglas Dynasty: Fame, Addiction and Finding Home" (3.010 million viewers, #11; adults 18-49: 0.5, #T12).

And finally, The CW (1.090 million viewers, #5; adults 18-49: 0.4, #5) closed out the evening with fresh installments of "The Flash" (1.404 million viewers, #13; adults 18-49: 0.5, #T12) and "Arrow" (0.776 million viewers, #14; adults 18-49: 0.3, #14).

Week-to-week changes (adults 18-49):
+16.67% - Black-ish
+12.50% - New Amsterdam
+6.67% - This Is Us
0.00% - The Voice
0.00% - NCIS
0.00% - NCIS: New Orleans
0.00% - Mixed-ish
0.00% - The Flash
0.00% - Arrow
-11.11% - FBI

Year-to-year changes (adults 18-49):
0.00% - Black-ish (vs. Splitting Up Together)
-8.33% - NCIS
-12.50% - NCIS: New Orleans
-14.71% - World Series, Game 1
-18.75% - The Voice
-20.00% - FBI
-22.22% - Mixed-ish (vs. Black-ish)
-23.81% - This Is Us
-25.00% - Arrow (vs. Black Lightning)
-28.57% - The Flash
-30.77% - New Amsterdam
-37.50% - The Douglas Dynasty: Fame, Addiction and Finding Home (vs. The Rookie)

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

TBA

Source: Nielsen Media Research