We get flickering of shows with our new LG 4k TV and the only solution is to unplug the hd cable from the tv and plug it back in EVERYTIME we turn on the tv. We have Tivo set to the highest resolution of 1080 automatic and we do not want to go any lower as that will defeat the purpose of having a 4k tv. We have gone through a few hd tv cables thinking that was the issue and it appears someone else on this forum had the same issue but I can't understand how he overcame it. We've also tried different HD ports as well. We don't want to throw out this box and just want the flickering to stop. Please help!