Thursday Primetime Results:

"The Biggest Loser" and an encore telecast of "The Mysteries of Laura" are the night's #1-#2 non-sports telecasts on the Big 4 in 18-49 and total viewers, making NBC the night's top non-sports net among the Big 4 in all key measures (including a tie in men 18-34).

· "The Biggest Loser" (1.3/5 in 18-49, 4.6 million viewers overall from 8-10 p.m. ET) ranks as the #1 non-sports telecast on the Big 4 last night in every key measure - adults, men and women 18-34, 18-49 and 25-54, plus total viewers.

· An encore telecast of Wednesday's preview of "The Mysteries of Laura" (0.8/3 in 18-49, 4.0 million viewers overall from 10-11 p.m. ET) is currently the night's #1 drama encore in 18-49 and total viewers on the Big 4 among six drama rebroadcasts, ahead of two "Scandal" encores, a "Grey's Anatomy" encore and two "Sleepy Hollow" rebroadcasts, pending updates. The "Laura" encore is currently topping a "Scandal" rebroadcast head to head from 10-11 p.m. in adults 18-49 (0.8 vs. 0.7) and total viewers (4.0 million vs. 3.8 million), pending updates.

· From its first half-hour to its second, the "Mysteries of Laura" encore retained its full 18-49 rating (0.8 vs. 0.8) and grew +2% in total viewers (to 4.047 million from 3.956 million), despite the 10 p.m. hour.

In Late-Night Metered Markets Thursday Night:

· In Nielsen's 56 metered markets, household results were: "The Tonight Show Starring Jimmy Fallon," 3.0/8; CBS's "Late Show with David Letterman," 1.4/5 with an encore delayed by an NFL overrun; and ABC's "Jimmy Kimmel Live," 1.9/5.

· In the 25 markets with Local People Meters, adult 18-49 results were: "The Tonight Show Starring Jimmy Fallon," 1.0/5; "Late Show," 0.4/3 with an encore delayed by an NFL overrun; and "Jimmy Kimmel Live," 0.5/3.

· From 12:35-1:05 a.m. ET , ABC's "Nightline" averaged a 1.2/4 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, "Late Night with Seth Meyers" (1.4/5 in metered-market households) beat CBS's "Late Late Show with Craig Ferguson" (0.9/4 delayed by an NFL overrun). In the 25 markets with Local People Meters, "Late Night" (0.5/4 in 18-49) topped "Late Late Show" (0.3/3 delayed by an NFL overrun).

· At 1:35 a.m. ET , "Last Call with Carson Daly" averaged a 0.8/4 in metered-market households with an encore and a 0.3/3 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.