just perchased a lg-50px5d..have noticed while switching between hd channels it would show some lines and stall for a sec or two then show the next channel...tonight that stalling remained with lines running accross the screen and to get rid of it had to unplug the tv and reset the cable box (pioneer voyager)..has anyone heard of this..dont know if its the tv or the cable box..box is hooked up using the video input with composit lines..other then that the hd picture looks great...thanks in advance