via press release:
CBS won Tuesday with a night of rebroadcasts as NCIS and THE MENTALIST won their respective time periods, according to Nielsen preliminary live plus same day ratings for Dec. 9.
NCIS (R) won its time slot in households (8.9/14), viewers (14.11m), was second in adults 25-54 (3.8/09) and averaged a 2.7/07 in adults 18-49.
THE MENTALIST (R) was first in households (9.0/14), viewers (13.65m), second in adults 25-54 (4.0/09) and adults 18-49 (2.8/07). Compared to the first run broadcast of this episode (on October 14, 2008), the rebroadcast delivered 96% of the first run household ratings, 91% of viewers, 85% of adults 25-54 and 82% of adults 18-49.
WITHOUT A TRACE (R) was second in households (5.8/10), viewers (8.54m), adults 25-54 (2.6/07) and adults 18-49 (1.8/05).
For the night, CBS was first in households (7.9/13) and viewers (12.10m) and averaged a 3.5/08 in adults 25-54 and 2.4/06 in adults 18-49.