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 (3/22/21):

CBS (4.981 million viewers, #1; adults 18-49: 1.2, #1) once again scored top honors on Monday with its primetime portions of the "NCAA Men's Basketball Tournament: (1) Michigan vs. (8) LSU" (5.802 million viewers, #2; adults 18-49: 1.4, #1) and "NCAA Men's Basketball Tournament: (3) Kansas vs. (6) USC" (4.159 million viewers, #5; adults 18-49: 1.1, #2).

NBC (4.872 million viewers, #2; adults 18-49: 0.7, #2) was the silver draw with its duo of "The Voice" (5.913 million viewers, #1; adults 18-49: 0.8, #3) and "Debris" (2.791 million viewers, #6; adults 18-49: 0.4, #T6).

Next up was ABC (4.575 million viewers, #3; adults 18-49: 0.6, #3) with the Monday premiere of "American Idol" (4.575 million viewers, #3; adults 18-49: 0.7, #4) and a new "The Good Doctor" (4.177 million viewers, #4; adults 18-49: 0.5, #5).

Meanwhile, FOX (2.233 million viewers, #4; adults 18-49: 0.4, #4) offered up a repeat "9-1-1" (2.460 million viewers, #7; adults 18-49: 0.4, #T6) and a new "America's Most Wanted" (2.006 million viewers, #8; adults 18-49: 0.4, #T6).

And finally, The CW (0.411 million viewers, #5; adults 18-49: 0.1, #5) closed out the night with a new "Bulletproof" (0.529 million viewers, #9; adults 18-49: 0.1, #T9) and a repeat "Black Lightning" (0.293 million viewers, #10; adults 18-49: 0.1, #T9).

Week-to-week changes (adults 18-49):
+33.33% - America's Most Wanted
0.00% - Debris
0.00% - Bulletproof
-16.67% - The Good Doctor (vs. 3/8/21)
-27.27% - The Voice

Year-to-year changes (adults 18-49):
-50.00% - America's Most Wanted (vs. Prodigal Son)
-50.00% - Debris (vs. Manifest)
-50.00% - American Idol
-52.94% - The Voice
-54.55% - The Good Doctor
-66.67% - Bulletproof (vs. Supernatural)

Here are the highlights of the 12 ad-sustained programs that aired in primetime on the broadcast networks one year ago (3/23/20):

NBC (7.796 million viewers, #1; adults 18-49: 1.4, #1) held off the competition on Monday with its duo of "The Voice" (9.502 million viewers, #1; adults 18-49: 1.7, #1) and "Manifest" (4.383 million viewers, #8; adults 18-49: 0.8, #T5).

ABC (6.912 million viewers, #2; adults 18-49: 1.3, #2) was a close second with fresh installments from "American Idol" (6.976 million viewers, #2; adults 18-49: 1.4, #2) and "The Good Doctor" (6.783 million viewers, #4; adults 18-49: 1.1, #4).

Next up was FOX (5.274 million viewers, #3; adults 18-49: 1.1, #3) with originals of "9-1-1" (6.944 million viewers, #3; adults 18-49: 1.3, #3) and "Prodigal Son" (3.604 million viewers, #10; adults 18-49: 0.8, #T5).

Meanwhile, CBS (4.407 million viewers, #4; adults 18-49: 0.5, #4) went with repeats of "The Neighborhood" (5.497 million viewers, #5; adults 18-49: 0.7, #7), "Bob (Hearts) Abishola" (4.770 million viewers, #6; adults 18-49: 0.6, #8), "All Rise" (3.668 million viewers, #9; adults 18-49: 0.4, #T9) and "Bull" (4.420 million viewers, #7; adults 18-49: 0.4, #T9).

And finally, The CW (0.962 million viewers, #5; adults 18-49: 0.2, #5) wrapped the evening with new episodes of "Supernatural" (1.074 million viewers, #11; adults 18-49: 0.3, #11) and "Roswell, New Mexico" (0.850 million viewers, #12; adults 18-49: 0.2, #12).

Week-to-week changes (adults 18-49):
+50.00% - Supernatural
+22.22% - The Good Doctor (vs. 3/9/20)
+16.67% - American Idol
+14.29% - Prodigal Son
0.00% - Manifest
0.00% - Roswell, New Mexico
-5.56% - The Voice
-7.14% - 9-1-1

Year-to-year changes (adults 18-49):
+83.33% - The Good Doctor (vs. The Fix)
+44.44% - 9-1-1 (vs. The Resident)
+16.67% - American Idol
+6.25% - The Voice
0.00% - Supernatural (vs. Arrow)
0.00% - Manifest (vs. The Enemy Within)
0.00% - Roswell, New Mexico (vs. Penn & Teller: Fool Us (Repeat))
-33.33% - Prodigal Son (vs. 9-1-1)

Source: Nielsen Media Research, ShowBuzzDaily.com