"NCIS" AND "NCIS: LOS ANGELES" DELIVER LARGEST AUDIENCES OF THE SEASON

Both Series Win Time Periods in Adults 18-49 and Post Largest Adult 25-54 Ratings Since Season Premieres

"Vegas" Wins Time Period with Largest Audience Since October

CBS Sweeps Tuesday in Viewers and Key Demos, Posts Largest Tuesday Audience Since Premiere Week

NCIS and NCIS: LOS ANGELES delivered their largest audiences of the season and won their time periods in viewers and key demographics, leading CBS to a nightly win in all key measures, according to Nielsen preliminary live plus same day ratings for Tuesday, Jan. 8.

NCIS was first in households (13.0/20), viewers (20.87m), adults 25-54 (5.2/13) and adults 18-49 (3.5/10). NCIS posted its largest audience since Feb. 7, 2012, its best adults 25-54 ratings since Sept. 25, 2012 and its best in adults 18-49 since Nov. 27, 2012.

NCIS: LOS ANGELES was first in households (11.1/17), viewers (17.79m), adults 25-54 (4.4/10) and adults 18-49 (3.0/08). NCIS: LOS ANGELES posted its best viewer delivery since Feb. 22, 2011, its best adults 25-54 performance since Sept. 25, 2012 and matched its last first-run adults 18-49 rating, which was its best since Dec. 18, 2012.

VEGAS was first in households (7.0/12), viewers (10.78m) and adults 25-54 (2.5/06), and was second in adults 18-49 (1.6/04). VEGAS posted its best viewer delivery since Oct. 23, 2012, in adults 25-54 since Oct. 9, 2012 and matched its last adults 18-49 delivery on Dec. 18, 2012.

For the night, CBS was first in households (10.4/16), viewers (16.48m), adults 25-54 (4.0/10) and adults 18-49 (2.7/07). CBS posted its best Tuesday delivery with these programs in households and viewers since Sept. 25, 2012 (premiere week Tuesday), in adults 25-54 since Oct. 2, 2012 and in adults 18-49 since Nov. 27, 2012.

Updated Tuesday ratings will be available later today.