On a night when the competition served up nothing but repeats, CBS prevailed among the broadcasters in key demos behind the evening’s only first-run program, “Mike & Molly.”

According to preliminary national estimates from Nielsen, the Eye opened the night with an encore “2 Broke Girls” (1.3/4 in 18-49, 6.6 million viewers overall), and “Mike & Molly” (1.8/6 in 18-49, 8.4 million viewers overall) built on it by half a ratings point to lead its timeslot and stand as Monday’s No. 1 program in most categories. The half-hours were followed by repeats of “Scorpion” (1.2/4 in 18-49, 6.7 million viewers overall) and “NCIS: Los Angeles” (1.0/3 in 18-49, 6.1 million viewers overall).

ABC hung in there thanks to better-than-usual numbers for its holiday perennials “Happy New Year, Charlie Brown” (1.5/5 in 18-49, 5.4 million viewers overall) and “Rudolph’s Shiny New Year” (1.0/3 in 18-49, 3.5 million viewers overall). The former was up year-to-year by more than 30% in both the demo and total viewers, hitting six-year highs, while the latter was up a bit vs. last year to hit four-year highs. A “Castle” repeat closed out the night for ABC (0.8/3 in 18-49, 4.1 million viewers overall).

NBC aired special repeats of “State of Affairs” at both 8 (0.6/2 in 18-49, 3.8 million viewers overall) and 9 (0.5/1 in 18-49, 3.0 million viewers overall), followed by another encore in its regular 10 p.m. slot (0.5/1 in 18-49, 2.6 million viewers overall).

Fox went with repeats of its Monday regulars “Gotham” (0.5/2 in 18-49, 1.9 million viewers overall) and “Sleepy Hollow” (0.4/1 in 18-49, 1.5 million viewers overall), and CW did the same with “The Originals” (0.4/1 in 18-49, 1.2 million viewers overall) and “Jane the Virgin” (0.3/1 in 18-49, 1.1 million viewers overall).

Preliminary 18-49 averages for the night: CBS, 1.2/4; Univision, 1.1/4; ABC, 1.1/3; Telemundo, 0.6/2; NBC, 0.5/2; Fox, 0.5/1; CW, 0.4/1.

In total viewers: CBS, 6.8 million; ABC, 4.4 million; NBC, 3.1 million; Univision, 2.9 million; Fox, 1.7 million; Telemundo, 1.5 million; CW, 1.1 million.