CBS WINS THURSDAY IN VIEWERS AND KEY DEMOGRAPHICS

"CSI" 23.7 Million Viewers

"Survivor: Cook Islands" First in All Key Measures

First-Run "Shark" Tops First-Run "ER" in Viewers

CBS won Thursday in viewers and key demographics with first-run episodes of SURVIVOR: COOK ISLANDS, CSI and SHARK, according to preliminary Nielsen Live Plus same-day ratings for Dec. 7.

Editors Note: Due to the Cleveland Browns vs. Pittsburgh Steelers game on the NFL Network, CBS programming was broadcast on the CW affiliate in Pittsburgh. All ratings are tentative and subject to change.

SURVIVOR: COOK ISLANDS won its time slot in households (10.1/16), viewers (16.61m), adults 25-54 (6.8/17) and adults 18-49 (5.5/15).

CSI won its time period in households (14.6/22), viewers (23.72m), adults 25-54 (9.5/22), adults 18-49 (7.9/19) and adults 18-34 (5.8/16).

SHARK was first in households (9.7/16), viewers (14.71m), second in adults 25-54 (5.3/13) and adults 18-49 (4.3/12) against all first run programming on the competition.

For the night, CBS was first in households (11.4/18), viewers (18.35m), adults 25-54 (7.2/17) and adults 18-49 (5.9/15).

Final ratings will be available this afternoon.

[EDITOR'S NOTE: What follows is the afternoon update with the final national Nielsen ratings.]

CBS WINS THURSDAY IN VIEWERS AND KEY DEMOGRAPHICS

"CSI" 23.3 Million Viewers

"Survivor: Cook Islands" First in All Key Measures

First-Run "Shark" Tops First-Run "ER" in Viewers

CBS won Thursday in viewers and key demographics with first-run episodes of SURVIVOR: COOK ISLANDS, CSI and SHARK, according to Nielsen Live Plus same-day ratings for Dec. 7.

Editors Note: Due to the Cleveland Browns vs. Pittsburgh Steelers game on the NFL Network, CBS programming was broadcast on the CW affiliate in Pittsburgh.

SURVIVOR: COOK ISLANDS won its time slot in households (9.5/15), viewers (15.72m), adults 25-54 (6.6/16) and adults 18-49 (5.3/15). This is SURVIVOR's best viewer delivery since Oct. 5, 2006.

CSI won its time period in households (14.2/21), viewers (23.25m), adults 25-54 (9.4/21), adults 18-49 (7.8/19) and adults 18-34 (5.8/16). This is CSI's best delivery in adults 18-34 this season.

SHARK was first in households (9.3/15), viewers (13.98m), second in adults 25-54 (5.1/13) and adults 18-49 (4.2/11) against all first run programming on the competition.

For the night, CBS was first in households (11.0/17), viewers (17.70m), adults 25-54 (7.1/17) and adults 18-49 (5.8/15).