Hi all, New here and looking for some help! Recently purchased the Phillips 55pus6272 and I'm noticing stutter/judder in the picture. The best way I can describe it is that it looks like a bad internet stream. This is seen using a Sky box and also when using a Fire tv (both 1080p output). The issue is seen in all picture modes, the only way to resolve it seems to be by putting the tv in 'Game mode'. Is this normal for a 4k TV when using 1080p content? Or is this a fault? Cheers.