ABC’s ‘World News Tonight’ Hits Historic Ratings Milestone World News Tonight With David Muir led all shows on broadcast and cable for the week in total viewers, adults 18-49 and adults 25-54.

Aug. 15, 2005 -- -- Beginning today, ABC News' evening news broadcast will be titled "ABC's World News Tonight." Formerly, it was "ABC's World News Tonight with Peter Jennings." Jennings passed ...

Karamehmedovic has been in charge of “World News Tonight” since 2014 and has close ties to its anchor, David Muir. He joined ABC News in 1998 as a freelance editor working out of London.