Pauley Perrette Pauley Perrette

NCIS is still TV's most-watched show — and it's now the top-rated too.

The CBS drama's Season 10 premiere dominated Tuesday with 20.1 million viewers and a 4.1 rating in the adults 18-to-49 demographic. That's slightly higher than the Season 9 premiere's audience and two-tenths lower than last season's premiere rating.

CBS won every hour of the evening, with NCIS: Los Angeles nabbing 16.7 million viewers and 3.4, down a tad from last year, and the series premiere of Vegas reeling in 14.7 million and a 2.5.

Vote: Which fall premieres won you over? Which flopped?

8 p.m.
CBS: NCIS 20.1 million viewers (4.1 demo rating)
ABC: Dancing with the Stars 11.6 million (2.0) [8-10 p.m.]
Fox: New Girl 5.3 million (2.7); Ben and Kate 4.2 million (2.0)
NBC: The Voice 11.2 million (4.0)

9 p.m.
CBS:
NCIS: Los Angeles 16.7 million (3.4)
NBC: Go On 7.3 million (2.7); The New Normal 5.2 million (2.0)
Fox: New Girl 5.2 million (2.7); The Mindy Project 4.7 million (2.4)

10 p.m.
CBS:
Vegas 14.7 million (2.5)
ABC: Private Practice 6.5 million (1.9)
NBC: Parenthood 4.8 million (1.8)