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 (12/20/18):

ABC (4.106 million viewers, #2; adults 18-49: 0.9, #1) pulled into the top spot among adults 18-49 thanks to its telecast of "A Charlie Brown Christmas" (5.138 million viewers, #5; adults 18-49: 1.2, #1) and the finale to "The Great American Baking Show: Holiday Edition" (3.591 million viewers, #6; adults 18-49: 0.7, #T5).

CBS (5.391 million viewers, #1; adults 18-49: 0.8, #2) then was a close second with its mix of "The Big Bang Theory" (7.012 million viewers, #1; adults 18-49: 1.0, #2), "Young Sheldon" (6.551 million viewers, #2; adults 18-49: 0.9, #T3), "Mom" (6.404 million viewers, #3; adults 18-49: 0.9, #T3), the season finale of "Murphy Brown" (5.214 million viewers, #4; adults 18-49: 0.7, #T5) and "SWAT" (3.583 million viewers, #7; adults 18-49: 0.5, #T9).

Next up was NBC (2.965 million viewers, #3; adults 18-49: 0.6, #3) and part one of the "Timeless" (3.475 million viewers, #8; adults 18-49: 0.6, #T7) finale, part two of the "Timeless" (2.963 million viewers, #9; adults 18-49: 0.6, #T7) finale and a rebroadcast of "Deal or No Deal: Happy Howie Days" (2.457 million viewers, #10; adults 18-49: 0.5, #T9).

Meanwhile, FOX (1.497 million viewers, #4; adults 18-49: 0.4, #4) served up an encore of "A Christmas Story Live!" (1.497 million viewers, #11; adults 18-49: 0.4, #11).

And finally, "The 4th Annual Howie Mandel Stand-Up Extravaganza" (1.048 million viewers, #12; adults 18-49: 0.2, #12) on The CW (1.048 million viewers, #5; adults 18-49: 0.2, #5) rounded out the night.

Week-to-week changes (adults 18-49):
+16.67% - The Great American Baking Show: Holiday Edition
0.00% - Murphy Brown

Year-to-year changes (adults 18-49):
0.00% - The Great American Baking Show: Holiday Edition (vs. CMA Country Christmas)
0.00% - The 4th Annual Howie Mandel Stand-Up Extravaganza (vs. Supernatural/Arrow (Repeats))
-36.36% - Murphy Brown (vs. Life in Pieces)
-45.45% - Timeless - 8:00 (vs. A Saturday Night Live Christmas Special (Repeat))
-45.45% - Timeless - 9:00 (vs. A Saturday Night Live Christmas Special (Repeat))

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," 1.7/5; "Late Show with Stephen Colbert," 2.8/7; and ABC's "Jimmy Kimmel Live," 1.6/4.

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

· From 12:35-1:05 a.m. ET, ABC's "Nightline" averaged a 1.0/4 in metered-market households and a 0.3/2 in 18-49 in the Local People Meters.

· From 12:35-1:35 a.m. ET, ratings were: "Late Night with Seth Meyers," 1.1/4 in metered-market households; CBS's "Late Late Show," 1.3/5. In the 25 markets with Local People Meters, averages were: "Late Night," 0.3/3 in 18-49; "Late Late Show," 0.2/2.

· At 1:35 a.m., "Last Call with Carson Daly" averaged a 0.6/3 in metered-market households with an encore and a 0.2/2 in adults 18-49 in the 25 markets with local people meters.

Here are the highlights of the 14 ad-sustained programs that aired in primetime on the broadcast networks one year ago (12/21/17):

CBS (8.136 million viewers, #1; adults 18-49: 1.3, #1) paved the way to victory on Thursday with originals from "Young Sheldon" (11.197 million viewers, #1; adults 18-49: 1.7, #1), "Mom" (8.952 million viewers, #3; adults 18-49: 1.4, #2), "Life in Pieces" (6.746 million viewers, #4; adults 18-49: 1.1, #T5) and "SWAT" (6.269 million viewers, #5; adults 18-49: 1.1, #T5). A repeat "The Big Bang Theory" (9.382 million viewers, #2; adults 18-49: 1.3, #T3) opened the night.

NBC (3.426 million viewers, #3; adults 18-49: 1.0, #2) then took home the silver with its lineup of "Great News" (2.663 million viewers, #9; adults 18-49: 0.5, #9), another "Great News" (1.840 million viewers, #10; adults 18-49: 0.4, #10) and "A Saturday Night Live Christmas Special" (3.823 million viewers, #8; adults 18-49: 1.1, #T5).

Next up was ABC (4.730 million viewers, #2; adults 18-49: 0.9, #3) with encores of "A Charlie Brown Christmas" (5.607 million viewers, #6; adults 18-49: 1.3, #T3) and "CMA Country Christmas" (4.291 million viewers, #7; adults 18-49: 0.7, #8).

Meanwhile, FOX (1.287 million viewers, #4; adults 18-49: 0.3, #4) served up repeats of "Gotham" (1.186 million viewers, #12; adults 18-49: 0.3, #T11) and "The Orville" (1.390 million viewers, #11; adults 18-49: 0.3, #T11).

And finally, second runs of "Supernatural" (0.881 million viewers, #13; adults 18-49: 0.2, #13) and"Arrow" (0.549 million viewers, #14; adults 18-49: 0.1, #14) on The CW (0.714 million viewers, #5; adults 18-49: 0.2, #5) rounded out the night.

Week-to-week changes (adults 18-49):
+10.00% - SWAT
0.00% - Mom
0.00% - Life in Pieces
-15.00% - Young Sheldon
-28.57% - Great News (vs. 11/2/17)

Year-to-year changes (adults 18-49):
+88.89% - Young Sheldon (vs. The Great Indoors (Repeat))
+69.23% - SWAT (vs. Life in Pieces (Repeats))
+55.56% - Mom (vs. Mom (Repeat))
+37.50% - Life in Pieces (vs. Life in Pieces (Repeat))
-77.27% - Great News - 8:00 (vs. Thursday Night Football Pre-Game)
-88.57% - Great News - 8:30 (vs. Thursday Night Football)

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

· In Nielsen's 56 metered markets, household averages were: "The Tonight Show Starring Jimmy Fallon," 2.3/6; "Late Show with Stephen Colbert," 2.1/5 with an encore; and ABC's "Jimmy Kimmel Live," 1.6/4 with an encore.

· In the 25 markets with Local People Meters, adult 18-49 results were: "The Tonight Show Starring Jimmy Fallon," 0.8/4; "Late Show," 0.4/2 with an encore; and "Jimmy Kimmel Live," 0.4/3 with an encore.

· From 12:35-1:05 a.m. ET, ABC's "Nightline" averaged a 1.1/4 in metered-market households and a 0.3/2 in 18-49 in the Local People Meters.

· From 12:35-1:35 a.m. ET, ratings were: "Late Night with Seth Meyers," 1.4/5 in metered-market households; CBS's "Late Late Show," 1.0/4 with an encore. In the 25 markets with Local People Meters, averages were: "Late Night," 0.4/3 in 18-49; "Late Late Show," 0.2/2 with an encore.

· At 1:35 a.m., "Last Call with Carson Daly" averaged a 0.7/3 in metered-market households and a 0.3/3 in adults 18-49 in the 25 markets with local people meters.

Source: Nielsen Media Research