As you know, Satan is the master of deception and watching TV (especially ungodly programing) can defile one's spirit. Why don't you try this test.
Turn you TV off for one whole month. Don't go to movies or read newspapers or listen to secular radio stations for one whole month. This includes internet sites. Take all that additional time and apply it to reading the Word at least twice daily along with prayer. If you have to keep up on what's going on in the world, then listen to Christian radio stations.
Once you have faithfully completed this task, turn on the TV and you will find more ungodly material than you see now. You will become disgusted with what the world has become and yet you will be concerned for those that are lost even more so than before.
The more you watch ungodly programs, the more your spirit becomes defiled.
If you do this test, please post your results here. Your results will be based on how dedicated you are in doing this task faithfully. You will benefit greatly doing this test. The only thing you will lose is TV, movie, radio and newspaper time.
Give it a try!