I realise this thread is old but I have the same issue I think. I purchased a Samsung TV around a year ago and I too have issues with the youview display splitting at the bottom of the screen, has anyone managed to get this resolved. I have to turn off the youview box and turn it back on for the picture to look normal. I had an LG smart TV for this one and had no issues at all. The only difference between the two is the current TV is UHD whereas the older LG was just FHD.