THE PENULTIMATE EPISODE OF "SURVIVOR: SAMOA," "CSI" AND "THE MENTALIST" DRIVE CBS TO DECISIVE THURSDAY WIN

CBS Continues it Week-Long Primetime Dominance by Winning Every Half-Hour in Viewers and Adults 25-54 for the Fourth Consecutive Night, and Every Half-Hour in Adults 18-49 on Three of Four Nights

CBS won Thursday in viewers and key demographics behind the penultimate episode of SURVIVOR: SAMOA, CSI and THE MENTALIST, according to Nielsen preliminary live plus same day ratings for Dec. 17.

The nightly win continues CBS's week-long dominance in which the Network has won every half-hour in viewers and adults 25-54 all four nights, and every half-hour in adults 18-49 on three of four nights (Monday, Tuesday, Thursday).

SURVIVOR: SAMOA won its time period in households (7.3/12), viewers (12.45m), adults 25-54 (4.9/13) and adults 18-49 (3.9/12). SURVIVOR: SAMOA was the night's #1 program in adults 25-54 and adults 18-49.

The two-hour season finale of SURVIVOR: SAMOA will be broadcast Sunday, Dec. 20 (8:00-10:00 PM), followed by the SURVIVOR: SAMOA REUNION SHOW.

CSI: CRIME SCENE INVESTIGATION won its time period in households (9.5/15), viewers (15.54m), adults 25-54 (4.7/12) and adults 18-49 (3.5/10).

THE MENTALIST won its time period in households (9.9/17), viewers (15.72m), adults 25-54 (4.8/13) and adults 18-49 (3.5/10). THE MENTALIST was the night's #1 program in viewers.

For the night, CBS was first in households (8.9/15), viewers (14.57m), adults 25-54 (4.8/13) and adults 18-49 (3.6/10).

Updated Thursday ratings will be available this afternoon.