Tuesday Results:

· With its first telecast in four weeks and first this season with no "Voice" lead-in, "Chicago Fire" (1.9/5 in 18-49, 6.8 million viewers overall from 10:01-11 p.m. ET) finished within a tenth of a point of the slot lead among ABC, CBS and NBC in adults 18-49 (1.9 vs. 2.0 for CBS's "Person of Interest") and is #1 among those nets in women 18-49, adults 18-34, men 18-34 (tie) and women 18-34.

· Despite its four-week break and the absence of a "Voice" lead-in, "Chicago Fire" outrated ABC's premiere of "Killer Women" in the time period in every key measure - adults, men and women 18-34, 18-49 and 25-54, plus total viewers.

· In its first telecast in three weeks and first this season that did not lead into "The Voice," "The Biggest Loser" (1.7/5 in 18-49, 5.4 viewers overall from 8-10 p.m. ET) finished within 0.3 a point of the 2.0 for its prior telecast on Dec. 17. In women 18-34, "The Biggest Loser" tied for #1 among the Big 4 networks in the two-hour time period and ranked #2 in women 18-49 and 25-54.

In Late-Night Metered Markets Tuesday night:

· In Nielsen's 56 metered markets, household results were: "The Tonight Show with Jay Leno," 2.9/7; CBS's "Late Show with David Letterman," 2.5/6; 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 with Jay Leno," 0.9/4; "Late Show," 0.5/2; and "Jimmy Kimmel Live," 0.7/3.

· From 12:35-1:05 a.m. ET, ABC's "Nightline" averaged a 1.2/4 in metered-market households and a 0.4/2 in 18-49 in the Local People Meters.

· From 12:35-1:35 a.m. ET, "Late Night with Jimmy Fallon" (1.5/5 in metered-market households) beat CBS's "Late Late Show with Craig Ferguson" (1.2/4). In the 25 markets with Local People Meters, "Late Night" (0.6/4 in 18-49) topped "Late Late Show" (0.3/2).

· At 1:35 a.m., "Last Call with Carson Daly" averaged a 0.9/4 in metered-market households and a 0.4/3 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. Season figures are averages of "live plus seven day" data except for the two most recent weeks, which are "live plus same day."