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

Here are the highlights of the 16 ad-sustained programs that aired in primetime on the broadcast networks last night (4/1/21):

NBC (6.339 million viewers, #1; adults 18-49: 1.2, #1) got a big boost on Thursday thanks to its debut lineup of "Manifest" (3.830 million viewers, #8; adults 18-49: 0.6, #T6), "Law & Order: Special Victims Unit" (7.629 million viewers, #1; adults 18-49: 1.6, #1) and "Law & Order: Organized Crime" (7.557 million viewers, #2; adults 18-49: 1.5, #2).

ABC (3.707 million viewers, #3; adults 18-49: 0.6, #2) had to settle for second with its trio of "Station 19" (4.461 million viewers, #6; adults 18-49: 0.7, #T4), "Grey's Anatomy" (4.097 million viewers, #7; adults 18-49: 0.8, #3) and the Wednesday-bound "A Million Little Things" (2.564 million viewers, #10; adults 18-49: 0.4, #T10).

Next up was FOX (1.761 million viewers, #4; adults 18-49: 0.5, #3) with a new "Hell's Kitchen" (2.491 million viewers, #11; adults 18-49: 0.7, #T4) followed by the return of "The Moodys" (1.114 million viewers, #13; adults 18-49: 0.3, #T12) and a second "The Moodys" (0.949 million viewers, #14; adults 18-49: 0.2, #14).

Meanwhile, CBS (4.126 million viewers, #2; adults 18-49: 0.4, #4) served up its own new lineup of "Young Sheldon" (6.397 million viewers, #3; adults 18-49: 0.6, #T6), "United States of Al" (5.070 million viewers, #4; adults 18-49: 0.5, #T8), "Mom" (4.794 million viewers, #5; adults 18-49: 0.5, #T8), "B Positive" (3.690 million viewers, #9; adults 18-49: 0.4, #T10) and "Clarice" (2.402 million viewers, #12; adults 18-49: 0.3, #T12).

And finally, The CW (0.680 million viewers, #5; adults 18-49: 0.1, #5) closed out the night with rebroadcasts of "Penn & Teller: April Fool Us Day 2018" (0.758 million viewers, #15; adults 18-49: 0.1, #T15) and "Penn & Teller: April Fool Us Day 2019" (0.602 million viewers, #16; adults 18-49: 0.1, #T15).

Week-to-week changes (adults 18-49):
+166.67% - Law & Order: Special Victims Unit (vs. 2/25/21)
0.00% - Station 19
0.00% - Mom (vs. 3/11/21)
0.00% - Clarice (vs. 3/11/21)
-11.11% - Grey's Anatomy
-12.50% - Hell's Kitchen
-14.29% - Young Sheldon (vs. 3/11/21)
-20.00% - A Million Little Things
-33.33% - B Positive (vs. 3/11/21)

Year-to-year changes (adults 18-49):
+433.33% - Law & Order: Special Victims Unit (vs. Will & Grace (Repeat)/Indebted)
+150.00% - Law & Order: Organized Crime (vs. Law & Order: Special Victims Unit)
+7.69% - Hell's Kitchen (vs. Last Man Standing/Last Man Standing (Repeat))
0.00% - Manifest (vs. Superstore/Brooklyn Nine-Nine)
-33.33% - A Million Little Things (vs. How to Get Away with Murder)
-36.36% - Station 19
-40.00% - The Moodys - 9:00 (vs. Mental Samurai)
-42.86% - Grey's Anatomy
-44.44% - United States of Al (vs. Man with a Plan)
-50.00% - Mom
-50.00% - Clarice (vs. Tommy)
-53.85% - Young Sheldon
-60.00% - The Moodys - 9:30 (vs. Mental Samurai)
-95.56% - B Positive (vs. Broke)

Here are the highlights of the 18 ad-sustained programs that aired in primetime on the broadcast networks one year ago (4/2/20):

ABC (5.820 million viewers, #2; adults 18-49: 1.0, #1) held off the demo competition on Thursday with originals from "Station 19" (7.290 million viewers, #3; adults 18-49: 1.1, #3) and "Grey's Anatomy" (7.139 million viewers, #4; adults 18-49: 1.4, #1) plus the return of "How to Get Away with Murder" (3.032 million viewers, #11; adults 18-49: 0.6, #T9).

CBS (7.137 million viewers, #1; adults 18-49: 0.9, #2) was a close second with its debut lineup of "Young Sheldon" (9.992 million viewers, #1; adults 18-49: 1.3, #2), "Man with a Plan" (7.137 million viewers, #5; adults 18-49: 0.9, #T5), "Mom" (7.622 million viewers, #2; adults 18-49: 1.0, #4), "Broke" (7.050 million viewers, #6; adults 18-49: 0.9, #T5) and "Tommy" (5.510 million viewers, #7; adults 18-49: 0.6, #T9).

Next up was FOX (2.667 million viewers, #3; adults 18-49: 0.5, #T3) with a new "Last Man Standing" (4.105 million viewers, #8; adults 18-49: 0.7, #T7) followed by repeats of "Last Man Standing" (2.795 million viewers, #12; adults 18-49: 0.6, #T9) and "Mental Samurai" (1.884 million viewers, #14; adults 18-49: 0.5, #T13).

Meanwhile, NBC (2.565 million viewers, #4; adults 18-49: 0.5, #T3) offered up its mix of "Superstore" (3.291 million viewers, #10; adults 18-49: 0.7, #T7), "Brooklyn Nine-Nine" (2.203 million viewers, #13; adults 18-49: 0.5, #T13), a repeat "Will & Grace" (1.510 million viewers, #15; adults 18-49: 0.3, #T15), "Indebted" (1.358 million viewers, #16; adults 18-49: 0.3, #T15) and "Law & Order: Special Victims Unit" (3.513 million viewers, #9; adults 18-49: 0.6, #T9).

And finally, The CW (0.333 million viewers, #5; adults 18-49: 0.1, #5) opted for repeats of "Katy Keene" (0.413 million viewers, #17; adults 18-49: 0.1, #17) and "Legacies" (0.254 million viewers, #18; adults 18-49: 0.0, #18) to close out the night.

Week-to-week changes (adults 18-49):
+50.00% - How to Get Away with Murder (vs. 11/21/19)
+25.00% - Mom (vs. 3/12/20)
+20.00% - Tommy (vs. 3/12/20)
+18.18% - Young Sheldon (vs. 3/12/20)
+7.69% - Grey's Anatomy
0.00% - Indebted
-8.33% - Station 19
-12.50% - Last Man Standing
-14.29% - Law & Order: Special Victims Unit
-22.22% - Superstore
-28.57% - Brooklyn Nine-Nine

Year-to-year changes (adults 18-49):
+133.33% - Last Man Standing (vs. Gotham (Repeat))
+55.56% - Grey's Anatomy (vs. Station 19)
+28.57% - Broke (vs. Fam)
0.00% - How to Get Away with Murder (vs. For the People)
0.00% - Brooklyn Nine-Nine (vs. AP Bio)
-9.09% - Mom
-12.50% - Superstore
-14.29% - Tommy (vs. SWAT)
-25.00% - Law & Order: Special Victims Unit
-26.67% - Station 19 (vs. Grey's Anatomy)
-31.58% - Young Sheldon (vs. The Big Bang Theory)
-35.71% - Man with a Plan (vs. Young Sheldon)
-40.00% - Indebted (vs. Abby's)

Source: Nielsen Media Research, ShowBuzzDaily.com