Let The Games Begin

A scene from "Under the Dome." (Best Possible Screen Grab )

With three more episodes to go in the season, "Under the Dome" is comfortably winning in ratings and viewership on Monday nights. 

The CBS show, based on Stephen King's book about a small town trapped under a transparent dome, increased its audience to 10.81-million viewers and got a 2.5 rating in the key 18-to-49 demographic, up 4% from last week, according to preliminary numbers from Nielsen. 

CBS easily topped viewership and ratings rankings with a 1.7 in 18-to-49 and an average of 6.83-million viewers. Univision placed second in the key demo with a 1.4 rating.

ON LOCATION: Where the cameras roll

"Under the Dome's" closest competitor was NBC's "American Ninja Warrior," which drew 5.78-million viewers and increased its demo rating 13% to a 1.7, while "Get Out Alive With Bear Grylls" jumped 18% to a 1.3. 

ABC's only original for the night was "Mistresses," which brought in 3.44-million viewers and scored a rating of 1, up 11% from last week as the show moved to a 9 p.m. slot. 

Fox was in all repeats. 

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ryan.faughnder@latimes.com