Hello. I've recently purchased an LG Smart TV, and seem to be having a problem with the HDMI ports. Whenever I'm playing back DVD's it loses picture - sound keeps coming, but no picture. I've swapped the DVD player for a Bluray, changed HDMI ports, and HDMI cables and the same thing keeps happening at the same point on each DVD - well, different times on different DVDs, but the same time on the different DVDs...if that makes sense. The only way to get the picture back is to turn the TV off/on and reset the input to HDMI - which frankly is a faff while you're watching a DVD... Any clues?