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 (2/19/18):

[EDITOR'S NOTE: Due to the nature of live events, Fast Nationals for NBC are approximate.]

NBC (15.715 million viewers, #1; adults 18-49: 3.7, #1) was the network to beat on Monday as its "2018 Winter Olympics" (15.715 million viewers, #1; adults 18-49: 3.7, #1) coverage entered its final week.

ABC (5.554 million viewers, #2; adults 18-49: 1.3, #2) then took home the silver with a new "The Bachelor" (6.231 million viewers, #2; adults 18-49: 1.6, #2) and a repeat "The Good Doctor" (4.201 million viewers, #4; adults 18-49: 0.7, #T4).

Next up was CBS (3.956 million viewers, #3; adults 18-49: 0.8, #3) with "Celebrity Big Brother" (5.088 million viewers, #3; adults 18-49: 1.2, #3) followed by repeats of "The Big Bang Theory" (3.680 million viewers, #6; adults 18-49: 0.7, #T4), "Young Sheldon" (3.771 million viewers, #5; adults 18-49: 0.6, #6) and "Bull" (3.054 million viewers, #7; adults 18-49: 0.4, #T7).

Meanwhile, FOX (1.830 million viewers, #4; adults 18-49: 0.4, #4) opted for repeats of "Lucifer" (1.896 million viewers, #8; adults 18-49: 0.4, #T7) and "The Resident" (1.765 million viewers, #9; adults 18-49: 0.4, #T7).

And finally, a new "DC's Legends of Tomorrow" (1.430 million viewers, #10; adults 18-49: 0.4, #T7) and second runs of "Whose Line Is It Anyway?" (0.674 million viewers, #11; adults 18-49: 0.2, #T11) and another "Whose Line Is It Anyway?" (0.660 million viewers, #12; adults 18-49: 0.2, #T11) rounded out the night on The CW (1.048 million viewers, #5; adults 18-49: 0.3, #5).

Week-to-week changes (adults 18-49):
+6.67% - The Bachelor
-7.69% - Celebrity Big Brother
-20.00% - DC's Legends of Tomorrow
-28.85% - 2018 Winter Olympics

Year-to-year changes (adults 18-49):
-11.11% - Celebrity Big Brother (vs. Kevin Can Wait/Man with a Plan)
-15.79% - The Bachelor
-33.93% - 2018 Winter Olympics (vs. 2/17/14)
-42.86% - DC's Legends of Tomorrow (vs. Supergirl)

In late-night metered market ratings (via NBC's press release):

Late-night metered market ratings will return following NBC's Olympics coverage.

Here are the highlights of the 13 ad-sustained programs that aired in primetime on the broadcast networks one year ago (2/20/17):

"The Bachelor" (7.878 million viewers, #1; adults 18-49: 2.5, #1) continued its demo reign on Monday as ABC (6.110 million viewers, #2; adults 18-49: 1.9, #1) led the night. Leading out of the telecast was a new "Quantico" (2.573 million viewers, #11; adults 18-49: 0.7, #T11).

CBS (6.786 million viewers, #1; adults 18-49: 1.2, #T2) was the most-watched network with its mix of "Kevin Can Wait" (7.290 million viewers, #2; adults 18-49: 1.4, #T2), "Man with a Plan" (6.692 million viewers, #4; adults 18-49: 1.3, #4), "Superior Donuts" (6.675 million viewers, #5; adults 18-49: 1.2, #T5), "2 Broke Girls" (5.782 million viewers, #6; adults 18-49: 1.2, #T5) and "Scorpion" (7.137 million viewers, #3; adults 18-49: 1.2, #T5).

Next up was NBC (4.574 million viewers, #3; adults 18-49: 1.2, #T2) and its special "American Ninja Warrior: All Stars" (5.191 million viewers, #7; adults 18-49: 1.4, #T2) alongside the season finale of "Timeless" (3.342 million viewers, #10; adults 18-49: 0.9, #9).

Meanwhile, FOX (4.097 million viewers, #4; adults 18-49: 0.9, #4) offered up originals from "24: Legacy" (4.400 million viewers, #8; adults 18-49: 1.0, #8) and "APB" (3.794 million viewers, #9; adults 18-49: 0.8, #10).

And finally, new episodes of "Supergirl" (2.236 million viewers, #12; adults 18-49: 0.7, #T11) and "Jane the Virgin" (1.097 million viewers, #13; adults 18-49: 0.4, #13) closed out the night for The CW (1.666 million viewers, #5; adults 18-49: 0.6, #5).

Week-to-week changes (adults 18-49):
+28.57% - Timeless
+8.70% - The Bachelor
0.00% - Scorpion
0.00% - 2 Broke Girls
0.00% - Quantico
0.00% - Jane the Virgin
-6.67% - Kevin Can Wait
-7.14% - Man with a Plan
-12.50% - Supergirl
-14.29% - Superior Donuts
-16.67% - 24: Legacy
-20.00% - APB

Year-to-year changes (adults 18-49):
+75.00% - Supergirl (vs. Crazy Ex-Girlfriend)
+33.33% - Jane the Virgin
+18.64% - American Ninja Warrior: All Stars (vs. Various)
+4.17% - The Bachelor
-6.67% - Kevin Can Wait (vs. Supergirl)
-7.69% - Scorpion (vs. NCIS: Los Angeles)
-13.33% - Man with a Plan (vs. Supergirl)
-25.00% - Timeless (vs. The Biggest Loser)
-29.41% - 2 Broke Girls (vs. Scorpion)
-29.41% - Superior Donuts (vs. Scorpion)
-36.36% - Quantico (vs. Castle)
-46.67% - APB (vs. Lucifer)
-58.33% - 24: Legacy (vs. The X-Files)

In late-night metered market ratings (via NBC's press release):

· In Nielsen's 56 metered markets, household results were: "The Tonight Show Starring Jimmy Fallon," 1.7/4 with an encore telecast; "Late Show with Stephen Colbert," 2.7/7; and ABC's "Jimmy Kimmel Live," 1.5/4 with an encore.

· In the 25 markets with Local People Meters, adult 18-49 results were: "The Tonight Show Starring Jimmy Fallon," 0.5/3 with an encore; "Late Show," 0.5/3; and "Jimmy Kimmel Live," 0.4/2 with an encore.

· From 12:35-1:05 a.m. ET, ABC's "Nightline" averaged a 0.9/3 in metered-market households and a 0.2/2 in 18-49 in the Local People Meters.

· From 12:35-1:35 a.m. ET, ratings were: "Late Night with Seth Meyers," 1.0/4 in metered-market households; CBS's "Late Late Show," 1.1/4 with an encore. In the 25 markets with Local People Meters, averages were: "Late Night," 0.3/3 in 18-49; "Late Late Show," 0.3/2 with an encore.

· At 1:35 a.m., "Last Call with Carson Daly" averaged a 0.5/2 in metered-market households and a 0.2/2 in adults 18-49 in the 25 markets with local people meters.

Source: Nielsen Media Research