Why is it the TV promotes and gives airtime to the liars and crooks?

Then when it comes to people that have been telling the truth get ignored and laughed at. As soon as their predictions come to pass the TV moves on to another piece of propaganda. Ron Paul won almost every straw poll yet is ignored the latest was California were he won big. No mention anywhere? Is it because he told the congress and everyone concerned this recession was going to hit and he was dead on about the housing crisis in as early as 2002. How can we protect our families from whats to come if we are lied to.