Friday Primetime Results:

· A rebroadcast of "Dateline NBC" (1.0/3 in 18-49, 5.4 million viewers overall from 9-11 p.m. ET) grew from its first half-hour to its fourth by +50% in adult 18-49 rating (0.8 to 1.2), by +33% in adults 25-54 (1.2 to 1.6) and +25% or more than 1.1 million persons in total viewers (4.7 million to 5.8 million).

· For its second hour from 10-11 p.m., the "Dateline" encore tied ABC's "20/20" head to head in adults 18-49 (1.1 rating each) and adults 25-54 (1.6) and outdelivered "20/20" in total viewers (5.4 million from 10-11 p.m. vs. 4.8 million). In the 10:30-11 p.m. half-hour, the "Dateline" rebroadcast moved ahead of "20/20" in adults 18-49 (1.2 vs. 1.1).

· An encore telecast of "Grimm" averaged a 0.4/1 in 18-49 and 2.3 million viewers overall from 8-9 p.m. ET.

In Late-Night Metered Markets Friday Night:

· In Nielsen's 56 metered markets, household results were: "The Tonight Show Starring Jimmy Fallon," 2.5/6 with an encore telecast; CBS's "Late Show with David Letterman," 2.0/5 with an encore; and ABC's "Jimmy Kimmel Live," 1.8/4 with an encore.

· In the 25 markets with Local People Meters, adult 18-49 results were: "The Tonight Show Starring Jimmy Fallon," 0.8/3 with an encore; "Late Show," 0.4/1 with an encore; and "Jimmy Kimmel Live," 0.6/3 with an encore.

· From 12:35-1:05 a.m. ET, ABC's "Nightline" averaged a 1.1/3 in metered-market households and a 0.4/2 in 18-49 in the Local People Meters.

· From 12:35-1:35 a.m. ET, "Late Night with Seth Meyers" (1.2/4 in metered-market households with an encore) beat CBS's "Late Late Show with Craig Ferguson" (1.0/3 with an encore). In the 25 markets with Local People Meters, "Late Night" (0.4/2 in 18-49 with an encore) topped "Late Late Show" (0.3/1 with an encore).

· At 1:35 a.m., "Last Call with Carson Daly" averaged a 0.7/3 in metered-market households with an encore and a 0.3/2 in adults 18-49 in the 25 markets with local people meters.

NOTE: All ratings are "live plus same day" from Nielsen Media Research unless otherwise indicated.