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

Here are the highlights of the 12 ad-sustained programs that aired in primetime on the broadcast networks last night (4/12/21):

NBC (4.655 million viewers, #1; adults 18-49: 0.6, #T1) was the most-watched network on Monday thanks to new episodes of "The Voice" (5.637 million viewers, #1; adults 18-49: 0.7, #T1) and "Debris" (2.692 million viewers, #7; adults 18-49: 0.4, #T5).

ABC (4.240 million viewers, #3; adults 18-49: 0.6, #T1) shared in the demo honors with a new "American Idol" (4.240 million viewers, #5; adults 18-49: 0.7, #T1) and a rebroadcast of "Rebel" (2.242 million viewers, #8; adults 18-49: 0.3, #T9).

Next up was CBS (4.476 million viewers, #2; adults 18-49: 0.5, #3) with the return of "The Neighborhood" (4.789 million viewers, #3; adults 18-49: 0.6, #3), "Bob (Hearts) Abishola" (4.545 million viewers, #4; adults 18-49: 0.5, #4), "All Rise" (3.723 million viewers, #6; adults 18-49: 0.4, #T5) and "Bull" (5.037 million viewers, #2; adults 18-49: 0.4, #T5).

Meanwhile, FOX (1.750 million viewers, #4; adults 18-49: 0.4, #4) offered up a repeat "9-1-1" (1.968 million viewers, #9; adults 18-49: 0.4, #T5) and the season finale of "America's Most Wanted" (1.532 million viewers, #10; adults 18-49: 0.3, #T9).

And finally, The CW (0.551 million viewers, #5; adults 18-49: 0.2, #5) likewise had the return of "All American" (0.706 million viewers, #11; adults 18-49: 0.2, #11) and "Black Lightning" (0.396 million viewers, #12; adults 18-49: 0.1, #12).

Week-to-week changes (adults 18-49):
+100.00% - All American (vs. 3/15/21)
+16.67% - American Idol
0.00% - Bull (vs. 3/15/21)
0.00% - All Rise (vs. 3/15/21)
0.00% - Debris
0.00% - America's Most Wanted
0.00% - Black Lightning (vs. 3/15/21)
-12.50% - The Voice
-14.29% - The Neighborhood (vs. 3/15/21)
-16.67% - Bob (Hearts) Abishola (vs. 3/15/21)

Year-to-year changes (adults 18-49):
0.00% - All American (vs. Whose Line Is It Anyway?/Whose Line Is It Anyway? (Repeat))
0.00% - American Idol (vs. The Bachelor Presents: Listen to Your Heart)
0.00% - Black Lightning (vs. Roswell, New Mexico)
-33.33% - All Rise
-37.50% - Bob (Hearts) Abishola
-40.00% - The Neighborhood
-42.86% - Bull
-55.56% - Debris (vs. Songland)
-56.25% - The Voice
-72.73% - America's Most Wanted (vs. TMZ Investigates: Tiger King - What Really Went Down?)

Here are the highlights of the 13 ad-sustained programs that aired in primetime on the broadcast networks one year ago (4/13/20):

NBC (8.079 million viewers, #1; adults 18-49: 1.3, #T1) was the network to beat on Monday thanks to a new "The Voice" (9.755 million viewers, #1; adults 18-49: 1.6, #1) and the return of "Songland" (4.728 million viewers, #7; adults 18-49: 0.9, #5).

FOX (5.615 million viewers, #3; adults 18-49: 1.3, #T1) shared in the demo honors with an original "9-1-1" (7.353 million viewers, #2; adults 18-49: 1.5, #2) followed by the special "TMZ Investigates: Tiger King - What Really Went Down?" (3.878 million viewers, #8; adults 18-49: 1.1, #3).

Next up was CBS (6.748 million viewers, #2; adults 18-49: 0.7, #3) and fresh installments from "The Neighborhood" (7.155 million viewers, #4; adults 18-49: 1.0, #4), the season finale of "Bob (Hearts) Abishola" (6.744 million viewers, #5; adults 18-49: 0.8, #6), "All Rise" (6.003 million viewers, #6; adults 18-49: 0.6, #9) and "Bull" (7.292 million viewers, #3; adults 18-49: 0.7, #T7).

Meanwhile, ABC (2.865 million viewers, #4; adults 18-49: 0.6, #4) served up the premieres of "The Bachelor Presents: Listen to Your Heart" (2.974 million viewers, #9; adults 18-49: 0.7, #T7) and "The Baker and the Beauty" (2.648 million viewers, #10; adults 18-49: 0.5, #10).

And finally, The CW (0.760 million viewers, #5; adults 18-49: 0.2, #5) closed the evening with a new "Whose Line Is It Anyway?" (0.963 million viewers, #11; adults 18-49: 0.2, #T11), a repeat "Whose Line Is It Anyway?" (0.808 million viewers, #12; adults 18-49: 0.2, #T11) and a new "Roswell, New Mexico" (0.634 million viewers, #13; adults 18-49: 0.1, #13).

Week-to-week changes (adults 18-49):
+15.38% - 9-1-1 (vs. 3/30/20)
+6.67% - The Voice
0.00% - The Neighborhood
0.00% - Bob (Hearts) Abishola
0.00% - Bull
0.00% - Whose Line Is It Anyway?
0.00% - Roswell, New Mexico
-14.29% - All Rise

Year-to-year changes (adults 18-49):
+114.29% - 9-1-1 (vs. The Resident)
+50.00% - Songland (vs. The Enemy Within)
+23.08% - The Voice
+16.67% - Bull
0.00% - The Neighborhood
0.00% - Bob (Hearts) Abishola (vs. Man with a Plan)
0.00% - All Rise (vs. The Code)
0.00% - TMZ Investigates: Tiger King - What Really Went Down? (vs. 9-1-1)
0.00% - The Baker and the Beauty (vs. The Fix)
-33.33% - Whose Line Is It Anyway? (vs. DC's Legends of Tomorrow)
-41.67% - The Bachelor Presents: Listen to Your Heart (vs. American Idol)
-50.00% - Roswell, New Mexico (vs. Arrow)

Source: Nielsen Media Research, ShowBuzzDaily.com