2.
Of those three — newspapers, of course.
Radio no longer really does news. They mainly have deals with the newspapers for content.
TV does 30 to 60 minutes of news a night, but there’s a lot of filler in there. Often, they just expand — visually — on stories that were in the paper. A TV channel may have 3–4 young reporters in the field and some old farts sitting at a cheesy desk, reading the teleprompter.
But a newspaper has dozens of reporters pumping out tens of thousands of words per day. They have people on all sorts of beats. A typical daily newspaper may have 50 local, sourced stories in it a day, plus wire stories and syndicated content.