After a fairly solid performance in recent weeks, ABC’s “Marvel’s Agents of SHIELD” ended its second season with its lowest scores to date on Tuesday, a night that saw continued strong numbers by CW’s “The Flash” and solid ratings for the finales of the “NCIS” shows on CBS.

CBS and NBC tied for the night’s lead in adults 18-49, while the Eye drew nearly as many total viewers as the next two closest networks (NBC and ABC).

According to preliminary national estimates from Nielsen, “Marvel’s Agents of SHIELD” averaged a 1.3 rating/4 share in adults 18-49 and 4.0 million viewers overall with its two-hour finale from 9 to 11. The result is a bit surprising given that it had averaged a 1.5 or 1.6 with each of its last five episodes. And vs. last year’s hourlong finale (2.0 in 18-49, 5.5 million), “SHIELD” was down about 30%. It continues to be a strong performer in DVR playback, with last week’s episode spiking more than 80% in 18-49 (more than any other Tuesday show) to surge ahead of timeslot rival “NCIS: New Orleans.” One plus for ABC was that, since the network typically struggles in the 10 p.m., the two-hour score for “SHIELD” was above average for the net.

ABC kicked off its night with a “Dancing With the Stars” results show (1.5/5 in 18-49, 10.0 million viewers overall).

Elsewhere, CBS kicked off its night with the season finales of “NCIS” (1.9/7 in 18-49, 14.7 million viewers overall) and “NCIS: New Orleans” (1.7/5 in 18-49, 13.5 million viewers overall), with the former likely to match last week’s 2.0 in the nationals and the latter up a bit. “NCIS,” which was the night’s No. 1 scripted program in demos as well as the most-watched program overall, was down about 20% in 18-49 from last year’s finale (2.6), which drew 16.95 million total viewers. Closing the night was a special “CSI: Cyber” (1.2/4 in 18-49, 8.7 million viewers overall).

At NBC, “The Voice” (2.1/7 in 18-49, 9.0 million viewers overall) was up a tick from its Tuesday season low of last week and stood as Tuesday’s No. 1 show in 18-49. The music contest was followed by a pair of “Undateable” originals, with each episode doing a 1.3/4 in 18-49 while averaging 4.1 million viewers overall — matching its performance last week with an hourlong live episode. “Chicago Fire” (1.5/5 in 18-49, 6.6 million viewers overall) won the 10 p.m. hour in 18-49, but was down a smidge from last week and off about 20% from last year’s finale.

Fox ran fourth on the night with “Hell’s Kitchen” (1.2/4 in 18-49, 3.2 million viewers overall) and a special performance episode of “American Idol” (1.2/4 in 18-49, 5.5 million viewers overall).

CW’s “The Flash” (1.4/5 in 18-49, 3.5 million viewers overall) remained potent leading off Tuesday, down a tick from last week but edging out ABC’s “Marvel’s Agents of SHIELD” for 18-49 bragging rights in the Marvel/DC wars; compared with the same night a year ago, the rookie was up 75% over “The Originals” (1.4 vs. 0.8). At 9, “iZombie” (0.7/2 in 18-49, 1.8 million viewers overall) was on the high end of its range.

Preliminary 18-49 averages for the night: CBS and NBC, 1.6/5; ABC, 1.4/4; Fox and Univision, 1.2/4; CW, 1.0/3; Telemundo, 0.7/2.

In total viewers: CBS, 12.3 million; NBC, 6.6 million; ABC, 6.0 million; Fox, 4.4 million; Univision, 3.0 million; CW, 2.6 million; Telemundo, 1.5 million.