NBC has won the season's 15th week in 18-49, total viewers and all other key ratings categories, led by Saturday's NFL Wild Card playoff game coverage, which was #1 for the week in all key categories (excluding sports pre- and post-game shows).

NBC also won its third week in a row in total viewers and has now won three straight in-season weeks in total viewers with no Olympic help for the first time since May 2002. Additionally, NBC led the week in adults 25-54, 18-34 and most other key demos.

NBC has now ranked #1 or tied for #1 in 18-49 for 13 of the season's first 15 weeks.

Season to date, NBC is up 24% in 18-49, having moved from a tie for #3 at this point last year to #1 this year, and up 18% in total viewers.

It's the first time in nine years (since 2003) that NBC has been #1 outright at this point in the season.

NBC's 3.1 season average is its highest rating at this point in the season in five years (since 2007).

NBC's lead of 0.4 of a rating point so far this season (3.1 vs. 2.7 for #2 CBS) is the biggest for any network at this point in the season in nine years (since NBC led by 0.4 of a point at this time during the 2003-04 season).

For the Week:

* NBC's week featured season highs for all four Wednesday regulars and Sunday season debuts of "The Biggest Loser" and "Dateline NBC" that were both up 25% percent versus their year-ago debuts.

* Saturday's Vikings-Packers NFL Wild Card coverage was the #1 primetime show of the week on ABC, CBS, NBC and Fox in every key ratings category, plus kids and teens (rankings exclude sports pre- and post-game shows).

* Ranking in the top 30 in 18-49 were "Biggest Loser," "Chicago Fire," "SVU," "Betty White's Off Their Rockers," "Whitney," "Guys With Kids" and "Parenthood."

Here are "live plus same day" weekly averages for Week 15...

Week 14 Adults 18-49 vs. Same Week Last Year
Net...Week 2011... Week 2012...Diff
NBC...2.7...2.7...Even
CBS...3.3...1.6...Down 52%
ABC...2.3...1.4...Down 39%
Fox...1.4...2.3...Up 64%

Week 14 Total Viewers vs. Same Week Last Year
Net...Week 2011... Week 2012...Diff
NBC...8.263 million ...8.394 million...Up 2%
CBS...12.675 million...8.290 million...Down 35%
ABC...7.266 million ...5.066 million...Down 30%
Fox...4.235 million ...6.841 million...Up 62%

In 18-49 so far this season, NBC's schedule includes:

* The #1 primetime series on the broadcast networks, Sunday Night Football.

* 4 of primetime's top 6 programs on the broadcast nets (#1 "SNF," #4 Monday's "The Voice," #5 "Revolution" and #6 Tuesday's "The Voice").

* The #1 unscripted series, The Voice.

* The #1 drama on the broadcast nets, #1 new series and #5 series overall, Revolution.

* The #1 new comedy, Go On.

* The #1 Friday series, Grimm. Rankings exclude sports pre- and post-game shows.

NBC currently accounts for four of the top six new shows of the fall in 18-49:
1. Revolution, 5.0
2T. Go On, 3.2
2T. Elementary, 3.2
4. Nashville, 2.7
5. New Normal, 2.6
6. Chicago Fire, 2.5

In addition to being up for the season by 24 percent in 18-49 (3.1 vs. 2.5), NBC is up 18 percent in total viewers (8.8 million vs. 7.4 million) and up by double-digit percentages in all other key categories. NBC is the only network among ABC, CBS, NBC and Fox that's up versus year-ago averages in 18-49, total viewers or any other key measure.

Here are "most current" season averages thru 15 weeks...

Season to Date Adults 18-49 vs. Last Year
Net...Season to Date 2011... Season to Date 2012...Diff
NBC...2.5...3.1...Up 24%
CBS...3.2...2.7...Down 16%
ABC...2.5...2.3...Down 8%
Fox...3.0...2.4...Down 20%

Season to Date Total Viewers vs. Last Year
Net...Season to Date 2011... Season to Date 2012...Diff
NBC...7.446 million ...8.772 million...Up 18%
CBS...12.165 million...11.233 million...Down 8%
ABC...8.626 million ...8.064 million...Down 7%
Fox...8.328 million ...6.646 million...Down 20%

Median Age

NBC is the only network among ABC, CBS, NBC, Fox and CW whose audience has gotten younger this season versus last:

Network...'11-12...'12-13
NBC...49.1...48.5
CBS...54.9...56.5
ABC...52.3...53.1
Fox...45.6...45.8
CW...37.5...41.5

NBC WINS THE PRIMETIME WEEK OF DEC. 31-JAN. 6, KEEPING NBC #1 OR TIED FOR #1 IN 18-49 FOR 13 OF THE SEASON'S FIRST 15 WEEKS

FOR THE FIRST TIME IN 10 YEARS, NBC WINS THREE STRAIGHT IN-SEASON WEEKS IN TOTAL VIEWERS WITHOUT OLYMPICS HELP

NBC IS #1 OUTRIGHT IN 18-49 AT THIS POINT IN THE SEASON FOR THE FIRST TIME IN NINE YEARS, UP 24 PERCENT VS. ITS YEAR-AGO AVERAGE

NBC'S LEAD OF 0.4 OF A POINT SEASON TO DATE IN 18-49 IS THE LARGEST FOR ANY NET AT THIS POINT IN THE SEASON IN NINE YEARS

NBC TAKES TUESDAY AMONG ABC, CBS, NBC AND FOX AS AN ENCORE 'BETTY WHITE'S OFF THEIR ROCKERS' HATCHES THE SHOW'S THIRD-BEST 18-49 RATING EVER AND 'PARENTHOOD' WINS AT 10 AMONG ABC, CBS AND NBC

NBC WINS WEDNESDAY AMONG ABC, CBS, NBC AND FOX AS 'CHICAGO FIRE' SETS SERIES RECORDS, 'SVU' CAPTURES ITS TOP 18-49 RATING SINCE NOVEMBER 2011 AND 'WHITNEY' AND 'GUYS WITH KIDS' SET SEASON HIGHS

VIKINGS-PACKERS WILD CARD NFL FOOTBALL DOMINATES SATURDAY IN ALL KEY CATEGORIES

'BIGGEST LOSER' DEBUTS UP 25 PERCENT VS. ITS YEAR-AGO PREMIERE WITH ITS TOP 18-49 RATING SINCE THE MAY 2011 SEASON FINALE

THE SUNDAY SEASON DEBUT OF 'DATELINE NBC' IS UP 25 PERCENT VS. LAST YEAR'S PREMIERE

UNIVERSAL CITY, Calif. - January 8, 2013 - NBC has won the primetime week of December 31-January 6 among ABC, CBS, NBC and Fox in adults 18-49, total viewers adults 25-54 and adults 18-34, according to "live plus same day" viewing data from Nielsen Media Research. NBC has now ranked #1 or tied for #1 among those networks for 13 of the season's 15 weeks and 20 of the last 24 weeks overall.

NBC won its third straight week in total viewers among ABC, CBS, NBC and Fox, marking the first time in more than 10 years NBC has won three consecutive in-season weeks in total viewers without Olympic help. The last time NBC won three in-season non-Olympic weeks in a row was during the weeks of May 6 through May 20, 2002.

For the season to date, NBC ranks #1 with a 24 percent increase over its year-ago 18-49 average (with a 3.1 rating versus last year's 2.5). It's the first time in nine years NBC has ranked #1 outright at this point in the season. NBC's lead of 0.4 of a rating point so far this season (3.1 vs. 2.7 for #2 CBS) is the biggest for any network at this point in the season in nine years (since NBC led by 0.4 of a point at this time during the 2003-04 season).

In total viewers, NBC is up this season versus one year ago by 18 percent (8.8 million vs. 7.4 million). NBC is ahead of its year-ago season average by double-digit percentages in every key ratings category.

NBC Sports' Saturday coverage of the Vikings-Packers NFL Wild Card playoff game was the #1 primetime show of the week on ABC, CBS, NBC and Fox in every key category - adults, men and women 18-34, 18-49 and 25-54 and total viewers - as well as kids 2-11 and teens 12-17 (excluding sports pre- and post-game shows). Also ranking among the top primetime programs of the week on ABC, CBS, NBC and Fox in 18-49 were Sunday's "Biggest Loser" season premiere, #11; Wednesday's "Chicago Fire," tied for #15; Wednesday's "Law & Order: SVU," #17; Tuesday's 9:30 encore of "Betty White's Off Their Rockers," tied for #20; Wednesday's "Whitney," tied for #20; Wednesday's "Guys With Kids," tied for #25; and Tuesday's "Parenthood," tied for #25. Rankings exclude sports pre- and post-game shows.

NBC NFL coverage has delivered the #1 primetime rating of the week in adults 18-49 during all 15 weeks of the television season to date and has been #1 in total viewers for 13 of 15 weeks and the last 10 in a row.

Primetime averages for the week of December 31-January 6 in adults 18-49 are: NBC, 2.7/8; Fox, 2.3/6; CBS, 1.6/4; ABC, 1.4/4; and CW, 0.4/1. In overall total viewers, the weekly averages were: NBC, 8.4 million; CBS, 8.3 million; Fox, 6.8 million; ABC, 5.1 million; and CW, 1.2 million.

Season to date averages through eight weeks are: NBC, 3.1/9; CBS, 2.7/8; Fox, 2.4/7; ABC, 2.3/6; and CW, 0.7/2. In overall total viewers, the season averages are: CBS, 11.2 million; NBC, 8.8 million; ABC, 8.1 million; Fox, 6.7 million; and CW, 1.9 million.

NBC highlights for the week of December 31-January 6

Monday: The primetime segment of "NBC's New Year's Eve with Carson Daly" (1.2/4 in 18-49, 3.8 million viewers overall) grew versus last year's primetime telecast by 33 percent in 18-49 rating (to a 1.2 from a 0.9) and by 24 percent in total viewers (3.776 million vs. 3.053 million).

Tuesday: NBC ranked #1 among ABC, CBS, NBC and Fox Tuesday night in 18-49 as the 9:30 p.m. ET encore of "Betty White's Off Their Rockers" and "Parenthood" ranked as the #1 and #2 shows of the night on those networks.

The 9:30 "Off Their Rockers" (1.8/4 in 18-49, 5.7 million viewers overall) set series records for an encore in 18-49 and total viewers and was the top original or rebroadcast "Off Their Rockers" in 18-49 since the show's regular-slot debut last year (1.9 from 8-8:30 on Wednesday, April 4, 2012). It's the #3 "Rockers" ever in 18-49 behind only that regular-slot debut and a special preview on January 16, 2012 following a Betty White 90th birthday special. In total viewers, the 9:30 rebroadcast was the top "Rockers," original or encore, since April 25, 2012.

At 10, "Parenthood" (1.7/5 in 18-49, 5.4 million in total viewers) ranked #1 in the hour among ABC, CBS and NBC in 18-49 and all other key demographics.

Wednesday: NBC won Wednesday among ABC, CBS, NBC and Fox in 18-49 and total viewers as "Chicago Fire" and "Law & Order: SVU" delivered the #1 and 2 ratings of the night on ABC, CBS, NBC and Fox in both categories.

At 8 p.m. ET, "Whitney" (1.8/5 in 18-49, 5.0 million viewers overall) scored its highest 18-49 rating since its Wednesday debut on Jan. 11, 2012 and at 8:30, "Guys With Kids" (1.7/5 in 18-49, 4.4 million viewers overall) set a regular-slot series high in 18-49.

At 9, "Law & Order: SVU" (2.2/6 in adults 18-49, 7.7 million viewers overall) locked up its highest 18-49 rating since Nov. 30, 2011 and delivered its biggest overall audience since January 11, 2012.

At 10, "Chicago Fire" (2.4/7 in adults 18-49, 8.5 million viewers overall) delivered series records and led the hour among ABC, CBS and NBC in every key ratings category. Versus its prior original, "Chicago Fire" was up 26 percent in 18-49 (2.4 vs. 1.9 on Dec. 19).

Friday: Dateline NBC" (1.5/4 in 18-49, 5.7 million viewers overall from 9-11 p.m. ET) grew to a 1.8/5 in 18-49 and 6.6 million for its second hour from 10-11 to rank #1 for that hour among non-sports programs on ABC, CBS and NBC in adults, men and women 18-49; adults, men and women 25-54 and other key demos.

Saturday: NBC Sports' coverage of the Vikings-Packers NFL Wild Card playoff game (10.5/30 in 18-49, 30.3 million viewers overall, 17.3 rating, 28 share in households) propelled NBC to a dominant Saturday primetime victory in all key measures. It's the fourth straight year NBC's coverage of the Saturday primetime Wild Card game has delivered more than 30 million viewers.

The 30.276 million viewers for Saturday's game virtually matched the prior week's 30.281 million for the record-breaking Cowboys-Redskins "Sunday Night Football" telecast on December 30, which generated the biggest overall audience for a primetime telecast, excluding Olympics, since the Academy Awards averaged 39.3 million viewers on ABC February 26, 2012.

Sunday: A Sunday premiere of "The Biggest Loser" (3.0/8 in 18-49, 7.0 million viewers overall) scored gains versus the show's year-ago premiere of 25 percent in 18-49 rating (with a 3.0 vs. a 2.4) and 6 percent in total viewers (6.995 million vs. 6.589 million). It was the show's highest 18-49 rating since the season finale on May 24, 2011 (3.1/8). Excluding sports and Golden Globes, it was NBC's highest 18-49 rating in the slot since May 22, 2011.

The Sunday season debut of "Dateline NBC" (1.5/4 in 18-49, 5.9 million viewers overall) jumped versus last year's debut by 25 percent in 18-49 rating (1.2). It was the top "Dateline" Sunday rating since February 12, 2012 (1.6 from 7-9 p.m.). From its first half-hour to its fourth, "Dateline NBC" grew by 100 percent in 18-49 rating (to a 1.8 from a 0.9).

Ratings reflect "live plus same day" data from Nielsen Media Research unless otherwise noted. Season-to-date figures are averages of "live plus seven day" data except for the two most recent weeks, which are "live plus same day."