The folks at NBC give us their take on last night’s ratings –particularly as they relate to their own shows; The Voice, Go On, The New Normal and Parenthood.

In addition, they provide the ratings for The Tonight Show with Jay Leno, Late Show with David Letterman, Nightline, Jimmy Kimmel Live, Late Night with Jimmy Fallon, Late Late Show with Craig Ferguson, and Last Call with Carson Daly.

Tuesday Results:

NBC ranks #1 for the night in adults 18-49 with all four shows up substantially week to week. Versus the same night last year, NBC is up 45% (2.9 vs. 2.0) while ABC, CBS and Fox are down. NBC has now won three consecutive nights in 18-49 among ABC, CBS, NBC and Fox (Sunday, Monday and Tuesday) for the first time since December 2010 — 12/19/10, 12/20/10 and 12/21/10.

* From 8-9:01 p.m. ET, “The Voice” (4.4/13 in 18-49, 11.9 million viewers overall) jumped 47 percent versus last week’s Tuesday edition, a recap episode (4.4 vs. 3.0) and was up week to week by 41 percent or 3.5 million persons in total viewers (11.933 million vs. 8.481 million).

* Last night’s “The Voice” scored the #1 18-49 rating of the night on ABC, CBS, NBC and Fox, winning the time period by a 33 percent margin (with a 4.4 rating vs. a 3.3 for CBS’s second-place “NCIS”). “The Voice” grew by 0.8 of a point in 18-49 from half-hour to half-hour (to a 4.8 from a 4.0).

* “The Voice” is up 120 percent versus NBC’s average in the time period last season in 18-49 rating (4.4 vs. 2.0) and up 95 percent in total viewers (11.933 million vs. 6.116 million).

* From 9:01-9:31 p.m. ET “Go On” (2.8/6 in 18-49, 7.0million viewers overall) jumped 33 percent week to week (to a 2.8 from a 2.1) and 19 percent in total viewers (6.950 million vs. 5.818 million). Last night’s “Go On” is #2 in the slot among ABC, CBS, NBC and Fox in adults 18-49 ahead of Fox’s “The New Girl” and ABC’s “Dancing With the Stars” Results Show and within 0.2 of #1 “NCIS.” “Go On” is #1 in the half-hour among those networks in women 18-34.

* At 9:31-10 p.m. ET, “The New Normal” (2.0/5 in 18-49, 5.0 million in total viewers) is up week to week by 18 percent in 18-49 rating (2.0 vs. 1.7) and 10 percent in total viewers (4.962 million vs. 4.498 million).

* At 10 p.m. ET, “Parenthood” (2.0/6 in 18-49, 5.0 million in total viewers) is tied for #1 among ABC, CBS, NBC and Fox in adults 18-49, tying CBS’s “Vegas” (after trailing that show by 0.4 of a point one week ago and by 0.7 of a point two weeks ago. “Parenthood” is up week to week by 25 percent in 18-49 rating (to a 2.0 from a 1.6).

* “Parenthood” scored its highest 18-49 rating since November 29, 2011 (2.1).

* Keep in mind that last season, “Parenthood” originals added an average of 47 percent to these next-day “live plus same day” ratings in 18-49 when Nielsen reported “live plus seven day” results.

NBC has now won three consecutive nights in 18-49 among ABC, CBS, NBC and Fox (Sunday, Monday and Tuesday) for the first time during the regular season and with regularly schedule programming since November 2003 — Nov. 12-14, 2003.

This is NBC’s first fall Tuesday win in 18-49 with regular programming since Dec. 14, 2010 (“Minute to Win It” and “Biggest Loser 10” finale).

In Late-Night Metered Markets Tuesday night:

* In Nielsen’s 56 metered markets, household results were: “The Tonight Show with Jay Leno,” 2.6/7; CBS’s “Late Show with David Letterman,” 2.7/7; and ABC’s combo of “Nightline,” 3.1/8; and “Jimmy Kimmel Live,” 1.6/5.

* In the 25 markets with Local People Meters, adult 18-49 results were: “The Tonight Show with Jay Leno,” 0.9/4; “Late Show,” 0.6/3; “Nightline,” 0.9/4; and “Jimmy Kimmel Live,” 0.5/3.

* At 12:35 a.m., “Late Night with Jimmy Fallon” (1.3/5 in metered-market households) tied CBS’s “Late Late Show with Craig Ferguson” (1.3/5). In the 25 markets with Local People Meters, “Late Night” (0.5/3 in 18-49) topped “Late Late Show” (0.4/3).

* At 1:35 a.m., “Last Call with Carson Daly” averaged a 0.8/4 in metered-market households 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.