Yep, people rarely realize this when they talk about media bias but it's a major element of influence. No matter how "balanced" a report is within itself (rarely actually balanced), if all you hear is stories about the IRS targeting specific political groups and the attack on the U.S. embassy in Benghazi (conservative stations) or anecdotes about how much money Obamacare is saving people and how many local government programs are underfunded (liberal stations), you're going to walk away with a skewed perspective. The choice of stories and tone will tell you everything about a media organization's biases.