Monday's ratings recap:
* 8 pm/ET
Dancing with the Stars averaged 19.6 million total viewers over its 90-minute run, dipping 630K week-to-week. House placed second during the hour with 13 mil, gaining 830 thou.
Chevy Chasing CBS comedy repeats, Chuck came in fourth with 6 mil, inching up 380K.
* 9 pm
CBS' coverage of the NCAA men's basketball championship game drew 16.3 million in its first two hours. That puts it on pace to net out lower than last year's Kansas-Memphis faceoff.
ABC's Bob Saget-starring Surviving Suburbia debuted to a solid 12.16 mil; as a benchmark, Samantha Who? drew 14.9 mil for its own premiere in the same plum aprÃÂ¨s-DWTS time slot.
At 11 mil, 24 was down a hair from last week, while Heroes continued to redefine its all-time low (6.05 mil).
* 10 pm
Placing second behind hoops, Castle scored 9.24 million viewers, down 560K. Medium nearly matched its previous audience, sizing up 7.15 mil.