Anybody has any experience with magnetic wrap for video cable? I don't know exactly what to call these things. It's that bulbous thingie they install on the video input line on your PC monitor. I took some of these things apart from my USB cables and use them near each end of each S-VHS cable. Not that much difference for my S-VHS units and cable TV, but for my DVD, it's literally night and day, eliminates much of electrical interference which I though coming from the DVD player and I though I can't get rid off. Anybody else more tweaks like these?