Do you find that the media especially the mainstream media tends to be biased?

Of course they are. A lot of them don't even try to hide it. I don't think this is even a disputable idea.

Politically, Fox News is extremely right and CNN usually goes left. Most other mainstream news sources try to be non-partisan, although everyone's got a bias.

Definitely.

You just noticed now?

Yes they can be.

Mark Twain once said: If you don't read the paper, you're uninformed. If you do read the paper, you're misinformed.

(Here, have a picture of book Einstein.)