In the recently completed fourth quarter of 2017, CBS was the most-watched broadcast network in primetime, daytime and late night, winning all three key dayparts for the first time since 2009.

In primetime, CBS averaged 9.48 million viewers, beating its closest competitor by +710,000 viewers (+8%).

In daytime, the network averaged 3.90 million viewers, beating its closest competitor over +1 million viewers (+1.12m, +40%).

In late night, CBS averaged 2.63 million viewers, beating its closest competitor by +48,000 viewers (+22%).

Late night’s success in the fourth quarter was driven by THE LATE SHOW with STEPHEN COLBERT, which delivered CBS’ largest viewer total in late night in eight years (3.88m) and THE LATE LATE SHOW with JAMES CORDEN, which grew +7% in viewers (1.46m from 1.36m) compared to the fourth quarter of 2016.

Source: Nielsen most current ratings, Sept. 25, 2017 to Dec. 31, 2017.

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