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

Here are the highlights of the 15 ad-sustained programs that aired in primetime on the broadcast networks last night (3/31/21):

NBC (6.811 million viewers, #1; adults 18-49: 0.9, #T1) claimed top honors on Wednesday thanks to its trio of "Chicago Med" (6.976 million viewers, #2; adults 18-49: 0.8, #4), "Chicago Fire" (7.112 million viewers, #1; adults 18-49: 0.9, #T2) and "Chicago PD" (6.345 million viewers, #3; adults 18-49: 0.9, #T2).

FOX (3.649 million viewers, #2; adults 18-49: 0.9, #T1) shared the demo crown with fresh installments of "The Masked Singer" (4.793 million viewers, #4; adults 18-49: 1.1, #1) and "Game of Talents" (2.504 million viewers, #9; adults 18-49: 0.6, #5).

Next up was ABC (2.410 million viewers, #3; adults 18-49: 0.4, #3) and its mix of "The Goldbergs" (3.085 million viewers, #6; adults 18-49: 0.5, #T6), the season finale of "American Housewife" (2.657 million viewers, #8; adults 18-49: 0.4, #T8), "The Conners" (3.144 million viewers, #5; adults 18-49: 0.5, #T6), "Call Your Mother" (2.205 million viewers, #10; adults 18-49: 0.3, #T10) and the season finale of "The Con" (1.684 million viewers, #13; adults 18-49: 0.2, #13).

Meanwhile, CBS (2.291 million viewers, #4; adults 18-49: 0.3, #4) offered up a new "Tough as Nails" (2.996 million viewers, #7; adults 18-49: 0.4, #T8) alongside repeats of "SEAL Team" (2.014 million viewers, #11; adults 18-49: 0.3, #T10) and "S.W.A.T." (1.863 million viewers, #12; adults 18-49: 0.3, #T10).

And finally, the spring finale of "Riverdale" (0.525 million viewers, #14; adults 18-49: 0.1, #14) and a new "Nancy Drew" (0.378 million viewers, #15; adults 18-49: 0.0, #15) rounded out the night on The CW (0.452 million viewers, #5; adults 18-49: 0.1, #5).

Week-to-week changes (adults 18-49):
+14.29% - Chicago Med (vs. 3/17/21)
+12.50% - Chicago Fire (vs. 3/17/21)
+12.50% - Chicago PD (vs. 3/17/21)
0.00% - The Masked Singer
0.00% - The Conners
0.00% - Tough as Nails
0.00% - Call Your Mother
0.00% - The Con
-14.29% - Game of Talents
-16.67% - The Goldbergs
-20.00% - American Housewife
-50.00% - Riverdale
-100.00% - Nancy Drew

Year-to-year changes (adults 18-49):
+50.00% - Chicago Fire (vs. Chicago Fire (Repeat))
+50.00% - Chicago PD (vs. Chicago PD (Repeat))
+14.29% - Chicago Med (vs. Chicago Med (Repeat))
-33.33% - American Housewife (vs. Schooled)
-44.44% - The Conners (vs. Modern Family)
-44.44% - The Goldbergs
-50.00% - Riverdale (vs. Penn & Teller: Fool Us (Repeat))
-52.17% - The Masked Singer
-57.14% - Call Your Mother (vs. American Housewife)
-71.43% - The Con (vs. David Blaine: The Magic Way)
-75.00% - Tough as Nails (vs. Survivor: Winners at War)
-76.00% - Game of Talents (vs. The Masked Singer)
-100.00% - Nancy Drew (vs. Penn & Teller: Fool Us (Repeat))

Here are the highlights of the 15 ad-sustained programs that aired in primetime on the broadcast networks one year ago (4/1/20):

FOX (8.749 million viewers, #1; adults 18-49: 2.4, #1) overshadowed the competition on Wednesday with hour one of its "The Masked Singer" (8.312 million viewers, #2; adults 18-49: 2.3, #2) stunt and hour two of "The Masked Singer" (9.185 million viewers, #1; adults 18-49: 2.5, #1).

CBS (5.661 million viewers, #2; adults 18-49: 0.9, #2) was a distant second with its mix of "Survivor: Winners at War" (8.150 million viewers, #3; adults 18-49: 1.6, #3), "Garth & Trisha: Live!" (5.653 million viewers, #4; adults 18-49: 0.8, #6) and a repeat "SWAT" (3.181 million viewers, #12; adults 18-49: 0.4, #13).

Next up was ABC (3.745 million viewers, #4; adults 18-49: 0.8, #3) with originals from "The Goldbergs" (4.443 million viewers, #7; adults 18-49: 0.9, #T4), "Schooled" (3.250 million viewers, #11; adults 18-49: 0.6, #T10), "Modern Family" (4.290 million viewers, #8; adults 18-49: 0.9, #T4) and "American Housewife" (3.139 million viewers, #13; adults 18-49: 0.7, #T7) plus "David Blaine: The Magic Way" (3.673 million viewers, #10; adults 18-49: 0.7, #T7).

Meanwhile, NBC (4.717 million viewers, #3; adults 18-49: 0.6, #4) opted for repeats of "Chicago Med" (5.349 million viewers, #5; adults 18-49: 0.7, #T7), "Chicago Fire" (4.533 million viewers, #6; adults 18-49: 0.6, #T10) and "Chicago PD" (4.268 million viewers, #9; adults 18-49: 0.6, #T10).

And finally, The CW (0.871 million viewers, #5; adults 18-49: 0.2, #5) closed out the night with encores of "Penn & Teller: Fool Us" (0.905 million viewers, #14; adults 18-49: 0.2, #T14) and a second "Penn & Teller: Fool Us" (0.836 million viewers, #15; adults 18-49: 0.2, #T14).

Week-to-week changes (adults 18-49):
+16.67% - American Housewife
+9.52% - The Masked Singer
0.00% - Survivor: Winners at War
0.00% - The Goldbergs
0.00% - Modern Family (vs. 3/18/20)
0.00% - Schooled

Year-to-year changes (adults 18-49):
+150.00% - The Masked Singer - 9:00 (vs. Star)
+91.67% - The Masked Singer - 8:00 (vs. Empire)
+16.67% - David Blaine: The Magic Way (vs. Whiskey Cavalier)
+6.67% - Survivor: Winners at War
0.00% - Garth & Trisha: Live! (vs. Million Dollar Mile)
-12.50% - American Housewife (vs. Single Parents)
-18.18% - The Goldbergs
-18.18% - Modern Family
-25.00% - Schooled

Source: Nielsen Media Research, ShowBuzzDaily.com