From some of the responses, I'd say we may be learning/confirming more about bias in the poster than about bias in the media.
Kinda like that old phrase that the definition of someone with "good taste" is a person who likes the same things you do?
Not sure I agree.
When I was trained on how to deal with the media (yeah, we had a school for it, why not? we had one for everything else), The Big Rule was "never lie". Or more accurately, never get caught lying to the media. Apparently their pet peeve is to find out that a source has given them false info. Violators were subject to unmerciful public floggings, with video, live at 6 and 10.
So, you told the truth or dodged the question, but never told a lie.
For all that honesty, there was never one story that they got right. Not even the ones where all the
reporting they did was come by and pick up a copy of the press release - which just amazed me. They would get the date and the location right, some of the basic facts, and then they would ad lib something that made you wonder what they were smoking.
The last couple of years of my career I had an open door to the media, most particularly the local "investigative" reporters. My boss told me "we play ball with these guys, give them access, or they'll still figure it out and broadcast their own version, which will not be complimentary."
My experience was that the more open you were the better they treated you, but they always slanted the story. Even when the reporter would admit we had done something perfect, his story would make it sound as if we had barely managed to pull victor from the jaws of incompetence. No outright lies were told, it was just the way they told the truth (and what they chose to include or cut from the story).
And the advertising frenzy leading up to some stories (Tonight at ten, Local 10 Investigates reporter Roger X reports on a crime problem out of control and XPD's response - you'll be shocked!) was ridiculously slanted. The story would be the usual, but it bore no resemblance to what a viewer would expect from the hype.
I called and complained the first time that ever happened to me and was told to wait and watch the story. The story was okay, but God knows how many millions saw the advertisements, never saw the story, and came up with an opinion based on pure BS. Their answer to that was that the marketing department made up the ads and the reporters had no control over what they put out. Yeah, right.
All the general assignment reporters, radio talk show hosts, newspaper reporters, etc., ALL had their story written before they ever approached me. I was just the 30 seconds of film they needed, or the guy who gave the quotes that they would take out of context in their stories.
Color me biased, I figure I earned it.