ABC may have been the most-watched television network during this year’s premiere week, but CBS managed to obtain last week’s top position with a bit of help from “NCIS” and “The Mentalist.” Although CBS has yet to bring into play its highest-rated series, “CSI: Crime Scene Investigation,” it nevertheless won the week in both total viewers and the 18-to-49-year-old demographic that advertisers keenly hunt, as six of the 10 most popular shows of the week, including “60 Minutes” and “Criminal Minds,” belonged to the network.

CBS claimed the first spot with an average of 11.1 million viewers, followed by ABC with 9.2 million viewers, NBC, which drew 7.8 million viewers, and Fox with 6.5 million viewers, according to figures released on Tuesday by Nielsen Media Research.

Despite the fact that ABC’s dearly loved “Dancing with the Stars” was the week’s most-watched show, luring approximately 18.88 million viewers, hospital drama “Grey’s Anatomy,” which usually draws huge audiences, was not broadcast on Thursday, as the heavily discussed vice presidential debate took its place, and this may represent one of the reasons why ABC lost its top network position.

The premiere of CBS’s “The Ex-List” did not go very well, as the series starring Elizabeth Reaser made an unimpressive 6.8 million viewers tune in.

NBC’s most successful program was “Sunday Night Football,” with 14.21 million viewers, while the Peacock’s “Heroes” slipped from its once upon a time hit title with 9.5 million viewers.

While Fox’s “House” and “Fringe” won additional viewers compared to last week, “Terminator: The Sarah Connor Chronicles” is going really down.