CBS easily captured Monday’s primetime ratings race in key demos behind the college basketball title game between Kentucky and Kansas, which contributed to declines for the night’s other live programming , reality contests ”The Voice” on NBC and ”Dancing With the Stars” on ABC.

The preliminary numbers for basketball are unreliable due to time zone differences, but CBS affiliates averaged a 7.0 rating/17 share in adults 18-49 and 19.3 million viewers overall from 9:30 to 11, up a bit vs. the championship contest of a year ago. CBS started the evening with special repeats of ”2 Broke Girls” (2.5/8 in 18-49, 8.3 million viewers overall) and ”Two and a Half Men” (2.6/7 in 18-49, 8.5 million viewers overall), with these numbers expected to come down in the nationals as they include viewership for basketball in the West.

NBC was tops among the non-sports nets in adults 18-49 and 25-54 with its combo of ”The Voice” (4.1/11 in 18-49, 10.7 million viewers overall) and ”Smash” (2.2/5 in 18-49, 6.1 million viewers overall), with the former down a few ticks and the latter up a tick vs. last week. ”The Voice” was easily Monday’s No. 1 series in key demos.

At ABC, ”Dancing With the Stars” was also down a few ticks (2.8/7 in 18-49, 16.5 million viewers overall) but remained the night’s most-watched series overall. It was followed by ”Castle” (2.2/5 in 18-49, 12.1 million viewers overall), which was down slightly in the demo vs. last week; it tied with NBC’s ”Smash” in the 18-49 preliminaries while winning outright in 25-54 and total viewers.

Fox saw its best non-sports Monday in eight weeks with the timeslot debut of ”Bones” (2.5/7 in 18-49, 8.2 million viewers overall) followed by ”House” (2.2/6 in 18-49, 6.7 million viewers overall). ”Bones” was the night’s top-rated drama in 18-49.

At CW, an original episode of ”Gossip Girl” did a mere 0.5/2 in 18-49 and 1.1 million viewers overall, followed by an encore ”Hart of Dixie” (0.3/1 in 18-49, 0.7 million viewers overall).

Preliminary 18-49 averages for the night: CBS, 5.1/13; NBC, 3.4/9; ABC, 2.6/7; Fox, 2.4/6; Univision, 1.5/4; CW, 0.4/1.

In total viewers: ABC, 15.0 million; CBS, 14.6 million; NBC, 9.1 million; Fox, 7.5 million; Univision, 3.7 million; CW, 0.9 million.