No, but then, I don't operate under the illusion that news companies are there to brainwash anyone. They are there to make money! The stories that get them the highest ratings are the ones that prevail. Which is why sometimes we get subjected to weeks of drama about Jessica Simpson, Lindsey Lohan, etc.
I have seen many insightful investigations on broadcast news and in the newspaper. If you have the money and time to investigate every single story that interests you, then you can do without the media. Until then, you'll just have to check a variety of sources as well as search for non-media sources and make up your mind from the mix.