How do you feel about our big news media channels giving news information on a left/right wing basis?

I personally feel that MSNBC and CNN give news in an unbiased manner, but I have noticed that a lot of conservatives believe differently. I have noticed Fox news anchors give Jon Stewart a hard time based on his show, even though it isn't a news show and have watched some of them admit that they give their news based on their right wing beliefs. I don't think any news show should give out news based on their own personal beliefs. How do you feel about this?