Well if there is zero responsibility in the content, then we're in for a tough ride with all this disinformation.
You're PAYING for the disinformation. The accountability is that you drop cable television in protest.
Or you don't watch those channels, and their ad revenue, which is tied to their ratings, goes down.
Or you contact the advertisers on the channel and tell them you will not buy their product if they continue to advertise on the channel.