CNN making changes

For a network that has built its reputation on predictability, CNN Headline News is undergoing some dramatic changes.

The network debuted a new prime-time lineup Monday that dispenses with its usual continuous “wheel” of news.

It includes an hourlong entertainment program, “Showbiz Tonight” (4, 7 and 9 p.m. PST); a legal talk show with Nancy Grace as host (5, 8 and 10 p.m. PST); and an hour-long newscast, “Prime News Tonight” (6 p.m. PST).

Headline News has run half-hour newscasts throughout the day and evening for its entire 23-year history. While the network is pleased with its daytime ratings, evening viewership starts to sag.

“By the time you get to prime time in this day and age, most people are aware of the headlines of the day and want some different, distinctive programming,” said Ken Jautz, executive vice president of the CNN News Group.

Grace’s show is the highest-profile launch. The former prosecutor is a frequent substitute for Larry King on CNN.

CNN Headline News is also revamping its onscreen look.

A few years ago, it instituted a graphics-heavy format with several different elements, designed to appeal to computer-savvy viewers. Now the network is stepping back, making pictures the dominant element on the screen.