Someone once said, that news is a filler for the commercials.
Now I rarely watch TV, still I agree with the OP and subsequent posts.
Maybe all I want to be informed about, is the weather. No. I gotta wait until the commercial, then I am informed that "later in the newscast" the full weather report will be given .
Then there is the news stating in the later newscasts (6pm/11pm) "the full story will be presented".
Hence the reason I often just listen to the radio, or NOAA weather on 'puter, and even one of the TV stations that has nothing but weather, still presents local news on a smaller screen.