December is seldom kind to most broadcast shows still airing new episodes. Not so for NBC’s “This Is Us,” which continues to impress not just by not leaking viewers, but by actually growing. Tuesday’s midseason finale drew a 2.8 rating in the advertiser-coveted 18-49 demographic, tying its series high, and hitting a new series high in total viewers, with 10.93 million.

“This Is Us” plus a continuation of “The Voice” (1.9 in the demo and 10.1 million viewers) and a similarly steady “Chicago Fire” (1.7 in the demo, 7.71 million viewers) gave NBC the win by a decent margin in the demo.

CBS had the most total viewers, returning its usual Tuesday lineup after last week’s “Rudolph” extravaganza. “NCIS” raked in 14.49 million viewers and a 1.7 in the demo. “Bull” drew a 1.5 in the demo and 11.57 million viewers. “NCIS: New Orleans” drew a 1.2 and 9.3 million viewers.

ABC’s Tuesday comedies took a bit of a hit. “The Middle” dipped to a 1.4 in the demo and 6.05 million viewers. “American Housewife” drew a 1.4 and 5.01 million viewers. “Fresh Off the Boat” ticked down to a 1.1 and 3.84 million. “The Real O’Neals” dipped to a 0.8 and 3.05 million viewers. “Marvel’s Agents of S.H.I.E.L.D.” came in with a still-low 0.8 and 2.48 million viewers.

On The CW, “The Flash” suffered from a bit of a post-DC Crossover hangover, as is to be expected, though it pulled in a respectable 1.2 in the demo and 3.1 million viewers. “No Tomorrow” dipped from last week as well with a 0.3 and 860,000 viewers.

On Fox, “Brooklyn Nine-Nine” came in at a 1.0 and 2.31 million viewers, and “New Girl” stayed low with a 0.8 and 1.77 million viewers. “Scream Queens” also stayed low with a 0.5 and just 1.21 million viewers.

As a reminder, many of these series will see lifts of 50% or more once viewing within three and seven days is counted. However, most of those gains won’t translate to the ratings networks guarantee advertisers.