I now have the VU Duo2- box (cable) now tried a lot for almost a year and had. Since I had blocks formation again, I even sat down with the manufacturer and the only advice that I got was to get me a DB dampers, it was better but the problem was still not resolved. Now I have brought this tuner from Samsung and it runs at last everything went smoothly (picture and sound is finally perfect). The tuner from LG are simply too sensitive, which is here top. I am very pleased.