ATT hooked up my DVD player to Uverse and my Panasonic HD TV. I checked the HDMI cables, and they are correct. I turn on my tv using its remote, click on video/tv, go to video 2, and then turn on the DVD player. Everything works fine for a few minutes until I hear a loud popping sound, and the screen on the tv shows only a weird, wavy colorful malfunctioning. The DVD player freezes. How can I fix this?