BackFire
Blood. It's nature's lube
I think the biggest issue arises from the proliferation of the 24 hour news networks, and thus the 24 hour news cycle that now exists. The three big news stations all must cover something over the course of a day, even if there isn't anything particularly important or news worthy going on, and so you see them exaggerating stories constantly and talking about relatively unimportant things for hours and hours. You see constant "breaking news" alerts for practically nothing. Also because each network is competing not only with the other networks, but websites, they sometimes rush their stories, which increases the likelihood of making a mistake and getting something wrong.
There's also a problem with all of these networks being first and foremost entertainment, and conveying actual news and information a far distant second, as far as priorities go. They want as many eyeballs as possible, and so they'll talk about whatever they can to get those eyeballs, even if it's something superfluous. Of course, this also enhances their partisanship, they are all going for a specific audience, and don't want to lose that audience, so they will generally report things in a way that reinforces their audience's bias, telling them only what they want to hear as much as they possibly can.
The bias that exists in the media isn't new, though. There have always been left leaning and right leaning publications. The partisanship is worse now in that regard, but it's worse in pretty much every aspect of society, it's not unique to the media.
So yeah, there are problems, but they're pretty easy to avoid - just don't watch the 24 hour news networks. There are plenty of good news websites out there to get decent news and information.