Monday Results (ABC carried the Cowboys-Bears NFL telecast in Chicago):

NBC won the night among the Big 4, winning six of six primetime half-hours in 18-49 with the #1 and #2 shows of the night, "The Voice" and "The Sing-Off."

NBC has now ranked #1 in 18-49 among the Big 4 nets on eight of the last nine nights.

· From 8-9:02 p.m. ET, "The Voice" (3.4 rating, 9 share in adults 18-49, 12.8 million viewers overall) jumped to its top total-viewer result since Oct. 28 (13.2 million), and has now grown versus the prior Monday for three weeks in a row. In 18-49, "The Voice" is matching its rating for the prior two weeks and is up 3% versus the comparable episode of the prior cycle (3.3 on June 10).

· "The Voice" led all Big 4 competition in the time period in every key ratings measure and won the slot in adults18-49 among those nets by an 89% margin (3.4 vs. 1.8 for Fox's second-place "Almost Human"). "The Voice" is the #1 telecast of the night on ABC, CBS, NBC and Fox in adults 18-49, total viewers and other key measures.

· From 9:02-11 p.m. ET, the fourth season debut of "The Sing-Off" (2.4/6 in adults 18-49, 8.4 million viewers overall) is up 26% versus its prior debut in 18-49 (2.4 vs. 1.9 from 8-10 p.m. on Monday, Sept. 19, 2011) and is up 58% in total viewers (8.361 million vs. 5.300 million). Last night's "Sing-Off" ranked #1 in the two-hour time period among ABC, CBS, NBC and Fox in adults 18-49, adults 18-34, adults 25-54, total viewers and other key measures.

· These are the top 18-49 and total-viewer results for "The Sing-Off" since the finale of the second season (2.7/7 in 18-49, 8.612 million on Dec. 20, 2010).

· "The Sing-Off" topped every telecast of its first season (2009) and third season (2010) in 18-49 and total viewers.

In Late-Night Metered Markets Monday night:

· In Nielsen's 56 metered markets, household results were: "The Tonight Show with Jay Leno," 3.2/8; CBS's "Late Show with David Letterman," 2.0/5; and ABC's "Jimmy Kimmel Live," 2.2/6.

· In the 25 markets with Local People Meters, adult 18-49 results were: "The Tonight Show with Jay Leno," 0.9/4; "Late Show," 0.5/2; and "Jimmy Kimmel Live," 0.8/4.

· 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 Jimmy Fallon" (1.6/6 in metered-market households) beat CBS's "Late Late Show with Craig Ferguson" (0.9/3). In the 25 markets with Local People Meters, "Late Night" (0.6/4 in 18-49) topped "Late Late Show" (0.2/2).

· At 1:35 a.m., "Last Call with Carson Daly" averaged a 1.0/4 in metered-market households and a 0.4/4 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. Season figures are averages of "live plus seven day" data except for the two most recent weeks, which are "live plus same day."