Method of giving up watching TV

My parents have always guided me away from certain sins and I would say that they are Islamically inclined in that they read all salaahs, abundant Quran and stay away from most sins. However, the one habit I've noticed that they seem unable to give up is their addiction to watching television. They watch Indian soapies and Hollywood/Bollywood movies till late at night. Sometimes I think they fall asleep with their TV switched on. Sometimes they will be watching a funny video or an interesting movie while I am getting something from their room and they'd tell me to come and sit down and watch with them. I have just recently begun cutting tv out of my life and as much as I want to watch as well, I feel guilty while doing so. What dua can I read so that my parents will stop watching TV and will get more hidayat? And what can I read to strengthen my willpower so that I will not get tempted to watch TV or commit any other sins?