Despite delivering its lowest ratings of 2015, NBC’s “The Voice” easily bested ABC’s season premiere of “Dancing With the Stars” in key demos on Monday, another night of depressed ratings for most shows on the major networks. “Dancing,” meanwhile, was down double-digits from its recent premieres as it kicked off its 20th edition.

According to preliminary national estimates from Nielsen, “The Voice” averaged a 3.3 rating/10 share in adults 18-49 and 12.2 million viewers overall from 8 to 10 p.m., easily besting in demos the season premiere of “Dancing With the Stars” (2.0/7 in 18-49, 14.0 million viewers overall). The NBC show, which was down 0.5 from its national rating of last week, won in all under-55 categories and expanded its lead as the night wore on, prevailing by a big 71% margin in 18-49 in the 9:30 p.m. half-hour (3.6 vs. 2.1).

“Dancing With the Stars” is projected to finish down 16% from its year-ago premiere (2.1 vs. 2.5) and 13% lower than its fall premiere (2.4), which came the week before “The Voice” bowed.  Exhibiting an older skew, “Dancing” was up 3% in total viewers from its fall launch (14.0 million vs. 13.6 million) and easily beat “The Voice” head-to-head (14.0 million vs. 12.2 million) to stand as Monday’s most-watched program overall.

In Monday’s 10 p.m. hour, NBC’s “The Night Shift” (1.5/5 in 18-49, 5.7 million viewers overall) matched its season high set with its premiere on Feb. 23 and tied with ABC’s “Castle” (1.5/5 in 18-49, 9.1 million viewers overall) for the 18-49 lead. “Castle” was down a tick from the 1.6 it did with its final three episodes behind “The Bachelor” earlier this year while drawing its largest overall audience for an episode since the “Dancing” Monday fall finale in November.

Elsewhere, CBS claimed the night’s top scripted series in 18-49 with its 8:30 p.m. original episode of “Mike & Molly” (1.9/6 in 18-49, 8.5 million viewers overall), which was down 0.2 from last week for its 2015 low but did build on its special “The Big Bang Theory” repeat lead-in (1.7/6 in 18-49, 8.4 million viewers overall). Encores of “Scorpion” (1.3/4 in 18-49, 6.4 million viewers overall) and “NCIS: Los Angeles” (1.1/3 in 18-49, 6.1 million viewers overall) capped the night.

Fox aired a repeat “Gotham” (0.6/2 in 18-49, 2.4 million viewers overall) and an original “The Following” (1.1/3 in 18-49, 3.5 million viewers overall), which held at last week’s rating.

At CW, “The Originals” (0.6/2 in 18-49, 1.3 million viewers overall) was up a tick and “Jane the Virgin” (0.4/1 in 18-49, 1.1 million viewers overall) was down a tick from their spring premieres of the previous week.

Preliminary 18-49 averages for the night: NBC, 2.7/8; ABC, 1.9/6; CBS, 1.4/4; Univision, 1.0/3; Fox, 0.9/3; Telemundo, 0.6/2; CW, 0.5/2.

In total viewers: ABC, 12.4 million; NBC, 10.1 million; CBS, 7.0 million; Fox, 3.0 million; Univision, 2.7 million; Telemundo, 1.4 million; CW, 1.2 million.