NBC’s latest “Law and Order” extension opened to solid numbers Wednesday, but the night wasn’t kind to a couple of new shows — NBC’s “Undercovers” and ABC’s “The Whole Truth” — that are in trouble after soft second-seg scores.

Faring a bit better were CBS’ “The Defenders” and ABC’s “Better With You,” while CW’s “Hellcats,” which has now aired four times, is settling into a satisfactory ratings level for the netlet.

CBS won the night although its shows — like everything else on the night — were down from premiere week.

At NBC, “Law and Order: Los Angeles,” starring Skeet Ulrich and Corey Stoll, won the 10 o’clock hour with a 3.2 rating/10 share in adults 18-49 and 10.64 million viewers overall, beating out CBS’ “The Defenders” (2.5/8, 10.41m) and ABC’s “The Whole Truth” (1.2/4, 4.58m).

It’s a sturdy but unspectacular start, coming in below what “Law and Order: SVU” did in the hour last week with the second half of its expanded premiere (3.5 in 18-49) but trailing only CBS’ “Hawaii Five-0” (3.9) among this fall’s seven new 10 p.m. series openers.

“LOLA,” as it’s known inside NBC, also opened on par with the preem of the net’s last L.A. crime show, “Southland,” nearly 18 months ago.

As for the hour’s other newcomers, CBS comedic legal drama “The Defenders” declined by 14% from its bow to rank second, more than doubling “The Whole Truth” (1.2/4, 4.58m), which declined 20% from its weak preem score. It isn’t expected to last much longer in the timeslot.

ABC fared much better one hour earlier with “Modern Family” (4.6/13 in 18-49, 11.92m), the night’s top draw in 18-49 (down 10% from its series high of last week and up 17% year to year), but fell off sharply at 9:30 p.m. with “Cougar Town” (2.8/8, 6.97m), down 18% vs. last week and 26% below last year. From 8 to 9, “The Middle” (2.5/8, 8.35m) and “Better With You” (2.2/7, 7.99m) ran third, down 7% and 12% respectively from last week.

At CBS, “Survivor” (3.5/11, 12.26m) and “Criminal Minds” (3.6/10, 14.57m) declined from their preems by about 10% but prevailed in their hours, with “Minds” ranking as the night’s most-watched show overall.

In the night’s opening hour, NBC’s “Undercovers” (1.6/5 in 18-49, 7.24m) tumbled by 24% from its modest bow of last week and ranked fourth among the English-language broadcasters in 18-49; the net did a 2.1 demo score a year ago in the slot with new drama “Mercy.”

Fox aired two hours of “Hell’s Kitchen” (2.9/9, 6.33m), off just a tick from its week-earlier season premiere.

CW’s “Hellcats” (0.9/3 in 18-49, 2.22m) continues to be a good sked mate for “America’s Next Top Model” (1.3/4 in 18-49, 2.91m), with both shows earning a 1.3 rating among persons 12-34. In the net’s core women 18-34 demo, “Hellcats” had its best showing (1.8/5) since its Sept. 8 preem.