24HR Cable News . . . the vast wasteland of psuedo information.
It's not hard to figure it out. TV is 1) powerful; 2) expensive; and 3) still full of all the Marshall McLuhan "The Medium Is the Message" qualities. Shape a news organization that has to sell the news to it audience and what we've ended up with no surprise. Short attention spans need to be stimulated constantly, so we have "bites" and "briefs" but very little else . . all sizzle, no steak.
You find an audience and just give it what it wants, not necessarily what it needs.