By your logic, then you can't trust any of them.
I stood next to a CNN reporter at the Florida election certification as he said that there were as many Gore supporters in the crowd as there were Bush supporters. The problem was that there were maybe fifty Gore supporters at the Capitol building but there were easily two hundred Bush supporters. He was just careful to shoot his video at a narrow spot in the entrance so that the crowds looked even. When I watched the footage aired about a half hour later, it was full of file footage that was shot no where near the area being referenced in the story.
You can disparage Fox if you like but you just have to recognize that all of the media outlets air stories according to what their agenda considers "news." That is why media outlets with a liberal point of view ignored the Acorn scandal while Fox was running it as their lead story.
The fact that you don't like the messenger, doesn't mean that their message is always wrong. If Hitler or Stalin told me that the building was on fire, I would at least consider the possibility that it was true.
My favorite "nonstory" now is the way that CNN is sugar coating the budget impact of the Health Care legislation. They continue to push the projected long term savings of the legislation even though the bulk of the "savings" happens in the distant future and the short term numbers have already been brought into question by the CBO. You know the CBO (Congressional Budget Office) the people who came up with the initial projections for the bill.
At any rate, you hear a little blurb about things that oppose their point of view and week long tirades about things that support their point of view.