Well, at the heart of the matter is who they claim to be
"serving" with their news broadcasts. And the standard issue answer to that is "the general public" or "average citizen". Nevermind that there is no possible way to discern what that means or who it includes...in the end what it boils down to is they know the average schmuck would rather be dazzled with shiny graphics and statistics (see USA Today), and entertained with video clips and sound bites (see network news, CNN, Fox, etc), than be "forced" to sit and actually pay attention to a five or ten minute interview on an important topic.
The news media has over the years -- I believe -- conditioned us to be mentally lazy. To be spoonfed little bits and pieces of news, that when taken together is rarely relevant or meaningful, but always giving the illusion of being informative. Sort of like people who "satisfy their hunger" with a Snickers bar because "it's packed with peanuts and really satisfies." It's still shit food, and your body still needs the real stuff if it's to be nourished.
Using that analogy, network news is a Snickers bar, local news is bubble gum, and the News Hour is your basic peas and carrots Jenneyh!