CBS spins Thursday night ratings via press release:

The Ninth Season Premiere of “CSI” Wins its Time Period in All Key Measures-Including its First Ever Win in Adults 18-49 Over “Grey’s Anatomy”

  “CSI” Attracts Television’s Largest Primetime Audience of the Season with 23.5 Million Viewers

“Survivor: Gabon” Wins Time Period in Viewers and Demos

The Premiere of “Eleventh Hour” Wins its Time Period in Viewers

Drama Premieres Lead CBS to Thursday Sweep in Viewers and

Key Demos

The ninth season premiere of CSI, in which the forensic team tracks down Warrick’s killer, returned with 23.5 million viewers and its first ever win in adults 18-49 opposite an original “Grey’s Anatomy,” according to updated Nielsen live plus same day ratings for Thursday, Oct. 9.

CSI (P) won its time period in households (13.9/21), viewers (23.49m), adults 25-54 (9.1/20) and adults 18-49 (7.1/17). This is the first time CSI topped a first run episode of “Grey’s Anatomy” in adults 18-49 (vs. 5.6/13, +27%) and the largest margin of victory to date in households (vs. 9.8/15, +42%), viewers (vs. 14.80m, +59%) and adults 25-54 (from 6.2/14, +47%).  CSI premiered with the largest audience and best adults 25-54 delivery of any prime program this season.

This is CSI’s best delivery in households, viewers, adults 25-54 and adults 18-49 since Sept. 27, 2007 (last year’s season premiere).

SURVIVOR: GABON was first in households (7.7/12), viewers (13.28m), adults 25-54 (5.4/14) and adults 18-49 (4.4/12) at 8:00PM.  Compared to last week’s episode, SURVIVOR added +200,000 viewers (from 13.08m, +2%).   

The premiere of ELEVENTH HOUR won its time period in viewers (11.37m), second in households (7.2/12) and averaged a 4.1/10 in adults 25-54 and 3.2/09 in adults 18-49. 

For the night, CBS was first in households (9.6/15), viewers (16.11m), adults 25-54 (6.2/15) and adults 18-49 (4.9/13).   This is CBS’s best Thursday delivery in both viewers and adults 25-54 since April 3, 2008 and best adults 18-49 Thursday performance since December 13, 2007.  This is CBS’s first Thursday sweep (wins in households, viewers, adults 25-54 and adults 18-49) since April 3, 2008.