For the Week and the Season:

* NBC has tied for #1 for week 8 in adult 18-49 rating. For the first time in 10 years, NBC finished #1 or tied for #1 during seven of the season's first eight weeks.

* Versus the same week last year, NBC is up 14% in 18-49 (2.5 vs. 2.2). The other Big 4 networks are all down versus the same week last year.

* Season to date, NBC is now up 23 percent versus one year ago (3.2 vs. 2.6), having moved from #4 at this point last year to #1 this year

* NBC's 3.2 season average is its highest average at this point in the season in five years (since 2007).

For the Week:

* NBC is up versus the same week last year in every key ratings category by double-digit percentages.

* "Sunday Night Football" was #1 for the week in total viewers, adults 18-34, 18-49 and 25-54; men 18-34, 18-49 and 25-54; women 18-49, women 25-54 and teens 12-17.

* Monday's "The Voice" was #1 for the week in women 18-34 and 18-49.

Here are "live plus same day" weekly averages for Week 8...

Week 8 Adults 18-49 vs. Same Week Last Year
Net...Week 2011... Week 2012...Diff
NBC...2.2...2.5...Up 14%
CBS...2.8...2.5...Down 11%
ABC...2.7...2.2...Down 19%
Fox...2.3...1.7...Down 26%

Week 8 Total Viewers vs. Same Week Last Year
Net...Week 2011... Week 2012...Diff
NBC...6.804 million ...7.030 million...Up 3%
CBS...11.436 million...10.654 million...Down 7%
ABC...9.540 million ...8.126 million...Down 15%
Fox...6.215 million ...4.527 million...Down 27%

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 7 programs on the broadcast nets (#1 "SNF," #4 Monday's "The Voice," #5 Tuesday's "The Voice" and #7 "Revolution").

* The #1 unscripted series, The Voice.

* Tied for the #1 new drama and #2 drama overall on the broadcast nets, Revolution.

* The #1 new comedy, Go On.

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

NBC currently accounts for three of the top five new shows of the fall:
1. Revolution, 4.6
2T. Go On, 3.3
2T. Elementary, 3.3
4. Nashville, 2.9
5. New Normal, 2.7

In addition to being up for the season by 23 percent in 18-49 (3.2 vs. 2.6), NBC is up 18 percent in total viewers (8.7 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 eight weeks...

Season to Date Adults 18-49 vs. Last Year
Net...Season to Date 2011... Season to Date 2012...Diff
NBC...2.6...3.2...Up 23%
CBS...3.4...2.8...Down 18%
ABC...2.9...2.6...Down 10%
Fox...3.4...2.4...Down 29%

Season to Date Total Viewers vs. Last Year Net...Season to Date 2011... Season to Date 2012...Diff
NBC...7.352 million ...8.675 million...Up 18%
CBS...13.006 million...11.734 million...Down 10%
ABC...10.016 million ...9.086 million...Down 9%
Fox...9.649 million ...6.903 million...Down 28%

NOTE: All ratings are "live plus same day" from Nielsen Media Research unless otherwise indicated. Season figures are averages of "live plus seven day" data except for the two most recent weeks, which are "live plus same day."