Yes, at times all media outlets can be biased. We especially see this during political races or controversial issues when a print, broadcast, radio, or other news outlet only provides one side of a story. Many of the newspapers are owned by very liberal Democratic families which earns them the reputatation of being a liberal slanted newspaper.
As far as I can tell, Fox News is one of the least biased mediums, even though they have earned a reputation as a right-winged or Republican news station. They tend to be less biased and present more of both sides, even though they'll tell you which side they're on personally.