How do you silence the media?
The only thing to be done is to stop using none-City media. Come the West Ham game there will still be City fans commenting online in the newspapers match reports. Use City blogs and City social media and don't make money for organisations who use Man City as a way of marketing their product.
I honestly dont know but assume there is some way to force the media to change articles so they are truthful with some sort of threat of action if they continue to report false information?
Ive already binned the usual media and not had Sky or BT for years for exactly that reason.