via press release:
"THE 55TH ANNUAL GRAMMY AWARDS" SCORES 28.37 MILLION VIEWERS--SECOND LARGEST AUDIENCE SINCE 1993
Award Broadcast Posts Second Highest Adult 25-54 and Adults 18-49 Ratings Since 2004
Grammy's Set New Awards Show Social TV Record with 18.7 Million Social Media Comments
THE 55TH ANNUAL GRAMMY AWARDS delivered 28.37 million viewers—the second largest audience for the awards broadcast since 1993, according to Nielsen updated preliminary live plus same day ratings for Sunday, February 10.
From 8:00-11:30PM, THE GRAMMY AWARDS (S) posted a 15.9/25 with 28.37m viewers, 11.2 in adults 25-54, 10.1 in adults 18-49 and 9.3 in adults 18-34.
This is the GRAMMY's second best delivery in viewers since 1993 and second best delivery in both adults 25-54 and adults 18-49 since 2004 (all behind 2012's broadcast).
Compared to the 2011 ceremony (on February 13, 2011), CBS was up +7% in households (from 14.8/25), +4% in adults 25-54 (from 10.8/26), +1% in adults 18-49 (from 10.0/27) and added +1.70m viewers (from 26.67m, +6%).
THE 55th ANNUAL GRAMMY AWARDS® also set a new social TV record for an award show with more than 18.7 million social media comments, second only to the 2013, and topping the social TV record it set last year by +44%. (Source: Bluefin).