If you want to hear policy positions from the source you could watch C-SPAN. I actually think it is easy to tell fact from opinion while watching cable news. For one I almost never watch cable news after 7 p.m. central time, 90% of what you hear is going to be opinion. Secondly, use as many sources as possible, even if you do not like FOX, MSNBC, NPR, etc listen to thier position and make up your own opinion.