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

Here are the highlights of the 17 ad-sustained programs that aired in primetime on the broadcast networks last night (3/18/21):

ABC (4.246 million viewers, #1; adults 18-49: 0.7, #T1) was the top draw on Thursday thanks to its original lineup of "Station 19" (4.917 million viewers, #1; adults 18-49: 0.7, #3), "Grey's Anatomy" (4.854 million viewers, #2; adults 18-49: 0.9, #1) and "A Million Little Things" (2.968 million viewers, #7; adults 18-49: 0.5, #T5).

FOX (2.422 million viewers, #3; adults 18-49: 0.7, #T1) shared in the demo honors with its trio of "Hell's Kitchen" (2.578 million viewers, #9; adults 18-49: 0.8, #2), "Call Me Kat" (2.239 million viewers, #12; adults 18-49: 0.6, #4) and "Last Man Standing" (2.294 million viewers, #11; adults 18-49: 0.5, #T5).

Next up was CBS (2.996 million viewers, #2; adults 18-49: 0.4, #T3) with repeats of "Young Sheldon" (4.172 million viewers, #3; adults 18-49: 0.5, #T5) and another "Young Sheldon" (3.837 million viewers, #4; adults 18-49: 0.5, #T5) followed by a new "The Unicorn" (3.323 million viewers, #5; adults 18-49: 0.4, #T9), the season finale of "The Unicorn" (3.079 million viewers, #6; adults 18-49: 0.4, #T9) and a repeat "Clarice" (1.782 million viewers, #14; adults 18-49: 0.2, #16).

Meanwhile, NBC (2.212 million viewers, #4; adults 18-49: 0.4, #T3) offered up a new "Superstore" (2.299 million viewers, #10; adults 18-49: 0.4, #T9) alongside repeats of "Superstore" (1.316 million viewers, #16; adults 18-49: 0.3, #T13) and "Law & Order: Special Victims Unit" (2.109 million viewers, #13; adults 18-49: 0.3, #T13) plus a new "Dateline NBC" (2.719 million viewers, #8; adults 18-49: 0.4, #T9).

And finally, fresh installments from "Walker" (1.424 million viewers, #15; adults 18-49: 0.3, #T13) and "Legacies" (0.600 million viewers, #17; adults 18-49: 0.1, #17) rounded out the evening over on The CW (1.012 million viewers, #5; adults 18-49: 0.2, #5).

Week-to-week changes (adults 18-49):
+100.00% - Dateline NBC
+50.00% - Call Me Kat
+33.33% - Hell's Kitchen
+33.33% - Superstore
+25.00% - A Million Little Things
+12.50% - Grey's Anatomy
0.00% - Last Man Standing
0.00% - Walker
0.00% - Legacies
-20.00% - The Unicorn (vs. 3/4/21)
-22.22% - Station 19

Year-to-year changes (adults 18-49):
+200.00% - Walker (vs. Katy Keene)
+14.29% - Hell's Kitchen (vs. Last Man Standing/Outmatched)
0.00% - Call Me Kat (vs. Deputy)
-16.67% - Last Man Standing (vs. Deputy)
-20.00% - The Unicorn - 9:30 (vs. Bob (Hearts) Abishola (Repeat))
-28.57% - A Million Little Things
-40.00% - Grey's Anatomy
-42.86% - The Unicorn - 9:00 (vs. Mom (Repeat))
-46.15% - Station 19
-50.00% - Legacies
-55.56% - Dateline NBC (vs. NBC News Special Report: Coronavirus Pandemic)
-55.56% - Superstore

Here are the highlights of the 18 ad-sustained programs that aired in primetime on the broadcast networks one year ago (3/19/20):

ABC (6.277 million viewers, #1; adults 18-49: 1.2, #1) was sparked to another victory on Thursday with its trio of "Station 19" (7.528 million viewers, #1; adults 18-49: 1.3, #2), "Grey's Anatomy" (7.103 million viewers, #2; adults 18-49: 1.5, #1) and "A Million Little Things" (4.200 million viewers, #9; adults 18-49: 0.7, #T7).

The silver went to NBC (3.232 million viewers, #4; adults 18-49: 0.8, #2) with its mix of "Superstore" (3.750 million viewers, #12; adults 18-49: 0.9, #T3), "Brooklyn Nine-Nine" (2.468 million viewers, #15; adults 18-49: 0.7, #T7), "Will & Grace" (2.763 million viewers, #13; adults 18-49: 0.7, #T7), "Indebted" (1.931 million viewers, #16; adults 18-49: 0.5, #T14) and "NBC News Special Report: Coronavirus Pandemic" (4.241 million viewers, #8; adults 18-49: 0.9, #T3).

Next up was FOX (3.786 million viewers, #3; adults 18-49: 0.7, #3) with fresh installments from "Last Man Standing" (4.645 million viewers, #6; adults 18-49: 0.8, #T5), "Outmatched" (2.585 million viewers, #14; adults 18-49: 0.6, #T12) and "Deputy" (3.958 million viewers, #10; adults 18-49: 0.6, #T12).

Meanwhile, CBS (5.095 million viewers, #2; adults 18-49: 0.6, #4) opted for repeats of "Young Sheldon" (6.703 million viewers, #3; adults 18-49: 0.8, #T5), another "Young Sheldon" (6.162 million viewers, #4; adults 18-49: 0.7, #T7), "Mom" (5.535 million viewers, #5; adults 18-49: 0.7, #T7), "Bob (Hearts) Abishola" (4.344 million viewers, #7; adults 18-49: 0.5, #T14) and "Tommy" (3.914 million viewers, #11; adults 18-49: 0.4, #16).

And finally, originals from "Katy Keene" (0.515 million viewers, #18; adults 18-49: 0.1, #18) and "Legacies" (0.642 million viewers, #17; adults 18-49: 0.2, #17) rounded out the night on The CW (0.579 million viewers, #5; adults 18-49: 0.1, #5).

Week-to-week changes (adults 18-49):
+50.00% - Superstore (vs. 2/27/20)
+40.00% - Will & Grace
+33.33% - Last Man Standing
+30.00% - Station 19
+25.00% - Grey's Anatomy
+25.00% - Indebted
+20.00% - Outmatched
+16.67% - A Million Little Things
+16.67% - Brooklyn Nine-Nine
0.00% - Deputy
0.00% - Legacies
0.00% - Katy Keene

Year-to-year changes (adults 18-49):
+66.67% - Grey's Anatomy (vs. Station 19)
+40.00% - A Million Little Things (vs. For the People)
+40.00% - Brooklyn Nine-Nine (vs. AP Bio)
+33.33% - Last Man Standing (vs. Gotham)
+16.67% - Will & Grace (vs. Brooklyn Nine-Nine)
+12.50% - NBC News Special Report: Coronavirus Pandemic (vs. Law & Order: Special Victims Unit)
0.00% - Superstore
0.00% - Outmatched (vs. Gotham)
0.00% - Deputy (vs. The Orville)
-7.14% - Station 19 (vs. Grey's Anatomy)
-28.57% - Indebted (vs. Will & Grace)
-33.33% - Legacies
-75.00% - Katy Keene (vs. Supernatural)

Source: Nielsen Media Research, ShowBuzzDaily.com