Forgive me if I take a contrary view. It's more subtle than what you propose. The State is loath to offer fake news. And unless they're doing something quite outrageous, they don't have to. What the state feeds you is limited information. What you don't know can't hurt you, right? 

There may be many levels of government that disagree with what's said at the top. You'll never know. The party in power at any given moment, or its lingering remnants as we see with the US Democrats, are what shapes the message.

There's but one antidote that I know of. Unless you verify it from independent sources, distrust anything the government or it's media partners tell you.