CNN Headline News is much like CTV Newsnet; a continuously rotating "wheel" of news briefs.

Well, the U.S. version is undergoing a make-over. An excerpt from the AP story on Yahoo! News:

The network will debut a new prime-time lineup that dispenses with its usual continuous "wheel" of news. Like all-news radio stations, Headline News has run half-hour newscasts throughout the day and evening for its entire 23-year history.

The new lineup includes an hour-long entertainment program, a legal talk show with Nancy Grace as host and an hour-long newscast at 9 p.m. <.P>

"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.

Translation: Headline News' ratings sag during the evening. But the network is pleased with daytime ratings, and that format is remaining the same.