With the “NCIS” dramas in repeat on the final Tuesday before the start of the May sweep, NBC led every hour in key demos last night behind “The Voice,” “Chicago Med” and “Chicago Fire.” The night also saw a spike for ABC’s “Fresh Off the Boat” while CW’s “Containment” was up in its second week.

According to preliminary national estimates from Nielsen, “Containment” averaged a 0.6 rating/2 share in adults 18-49 and 1.7 million viewers overall, holding steady with its premiere in several categories while rising a tenth (at least in the prelims ) in 18-49. This would represent the high-end of the ratings range for “iZombie” in the timeslot earlier this season. Lead-in “The Flash” (1.3/5 in 18-49, 3.4 million viewers overall) edged up week to to rank No. 2 for the 8 o’clock hour in 18-49 and 18-34 (1.1/5) and No. 1 in men 18-34 (1.2/6).

With Live+3 delayed viewing included, last week’s series premiere of “Containment” gained 34% in total viewers, 31% in adults 18-34 and 37% in adults 18-49 over its same-day totals. And season to date in Live+7, “The Flash” has averaged a 56% increase in total viewers and adults 18-34 and a 62% spike in 18-49.

Elsewhere, NBC’s “The Voice” (1.9/7 in 18-49, 9.9 million viewers overall) was up a tenth (and possibly two in the finals) from its Tuesday low of last week, standing as Tuesday’s No. 1 program in key demos. It was followed by “Chicago Med” (1.8/6 in 18-49, 9.0 million viewers overall) and “Chicago Fire” (1.7/6 in 18-49, 8.3 million viewers overall), both of which were also on the rise and led their time periods.

ABC’s “Fresh Off the Boat,” with guest stars including Shaquille O’Neal, won the 8 o’clock half-hour in 18-49 with a 1.3 rating/5 share while drawing 5.7 million viewers overall. It rose 18% (0.2) from its prior original of two weeks ago for the show’s best score since March 8. That enabled “The Real O’Neals” (1.0/3 in 18-49, 3.5 million viewers overall) to rise 0.2 itself from last week’s low following a “Fresh Off the Boat” repeat. “Marvel’s Agents of SHIELD” (1.0/3 in 18-49, 3.3 million viewers overall) also was up a tick, while “Beyond the Tank” (0.5/2 in 18-49, 2.1 million viewers overall) surprisingly remains on the schedule — one week after placing eighth in its timeslot in 18-49.

CBS aired repeats of “NCIS” (1.2/4 in 18-49, 10.1 million viewers overall) and “NCIS: New Orleans” (1.1/4 in 18-49, 8.6 million viewers overall), the former of which was the night’s most-watched program overall. “Limitless” closed out the night (and its season) with typical numbers (1.1/4 in 18-49, 5.7 million viewers overall), suggesting it never meshed that well with its lead-in. Starting next week, veteran drama “Person of Interest” will air in place of “Limitless” on Tuesdays.

Fox was about average in the night’s opening hour with “New Girl” (1.0/4 in 18-49, 2.5 million viewers overall) and “Grandfathered” (0.6/2 in 18-49, 1.9 million viewers overall). A special second original of “New Girl” at 9 did a 0.8/3 and 2 million viewers overall, a bit below “Brooklyn Nine-Nine” last week in its regular timeslot, followed by a repeat “New Girl” at 9:30 p.m. featuring Prince as the guest star (0.7/2 in 18-49, 1.8 million viewers overall).