IF IT'S THURSDAY, IT MUST BE CBS

"Survivor: Guatemala," "CSI" and "Without a Trace" Continue to Dominate the Night

CBS continued its Thursday dominance behind another week of strong performances by SURVIVOR: GUATEMALA, CSI and WITHOUT A TRACE, according to preliminary Nielsen affiliate ratings for Nov. 17.

SURVIVOR: GUATEMALA won its time period with an 11.3/18 with 18.98m viewers, 4.2/12 in adults 18-34, 6.3/17 in adults 18-49 and 7.9/19 in adults 25-54.

From 9:00-10:00PM, CSI finished first in households (17.8/27), viewers (28.82m), adults 25-54 (12.2/27), adults 18-49 (9.9/24) and adults 18-34 (7.2/20), and should be the top program of the night in households, viewers, adults 18-34, adults 18-49 and adults 25-54 for the night.

At 10PM, WITHOUT A TRACE won its time period in households (13.8/23), viewers (21.33m), adults 25-54 (8.1/19) and second in adults 18-49 (6.6/17). WITHOUT A TRACE beat "ER" by +35% in households (vs. 10.2/17), +3% in adults 25-54 (vs. 7.9/19) and had nearly 6m more viewers (vs. 15.35m, +5.98m or +39%).

For the night, CBS was first in households (14.3/22), viewers (23.05m), adults 25-54 (9.4/22), adults 18-49 (7.6/20) and adults 18-34 (5.4/16).

Final Thursday ratings will be available this afternoon.

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

IF IT'S THURSDAY, IT MUST BE CBS

CBS Attracts Its Largest Thursday Audience of the Season

"Survivor: Guatemala," "CSI" and "Without a Trace" Continue to Dominate the Night

CBS continued its Thursday dominance behind another week of strong performances by SURVIVOR: GUATEMALA, CSI and WITHOUT A TRACE, leading the Network to its largest Thursday audience of the season, according to final national Nielsen ratings for Nov. 17.

SURVIVOR: GUATEMALA won its time period with an 11.2/17 with 18.82m viewers, 4.2/12 in adults 18-34, 6.4/17 in adults 18-49 and 7.9/19 in adults 25-54.

At 9PM, CSI finished first in households (17.8/27), viewers (28.99m), adults 25-54 (12.3/27), adults 18-49 (9.9/24) and adults 18-34 (7.3/20) and is the top program of the night in households, viewers, adults 18-34, adults 18-49 and adults 25-54. CSI beat NBC, ABC and FOX combined in households (vs. 13.7/21, +30%), viewers (vs. 20.21m, +43%), adults 25-54 (vs. 9.5/21, +29%) and adults 18-49 (vs. 8.5/21, +16%).

WITHOUT A TRACE won its 10PM time period in households (14.0/23), viewers (21.66m), adults 25-54 (8.2/20) and was second in adults 18-49 (6.7/18). WITHOUT A TRACE beat "ER" by +37% in households (vs. 10.2/17), +4% in adults 25-54 (vs. 7.9/19) and had over 6.3m more viewers (vs. 15.30m, +6.36m or +42%).

For the night, CBS was first in households (14.4/22), viewers (23.20m, CBS best viewer tally of the season), adults 25-54 (9.5/22), adults 18-49 (7.7/20) and adults 18-34 (5.4/16).