You can either mute the language or let the product print alternative phrases on the screen. And cutting the words out does nothing to the plot. Unfortunately, CurseFree TV does not, uh, clothe the naked nor stop the enemy's guns from shooting. It works only on dialog. Maybe the manufacturers could produce something similar for everyday conversation.
Words can do so much.
They can tell others about the gospel, they can build up a fellow Christian, and they can express prayer requests to our Father. They can also hide the truth, wound a friend's soul, spread false gossip, and gross everyone out. As Paul taught the Ephesians, our language is one reflection of our faith. With most of the stuff on TV, take those out and there is not much left beyond the closing credits. A little discretion, a spiritual perspective, can save those around us from talk that hurts.