When watching HD channels the cable will skip/stutter intermittently for a few seconds at a time. This happens on more than 1 channel and more than 1 cable box. Been with verizon for years but I am sick of paying $200+ for crappy service. When I googled this it seems like it's been a problem people have been experiencing for years. Any suggestions that actually work? Already tightened the cords, reset each box, and changed the video settings.