I've been using Tivo and TW Digital Cable for 6 years. I've had no issues for most of my channels but for some reason History Channel, Spike TV, National Geographic and Fit TV have major decoding issues. What happens is the picture becomes pixelated and the audio drops out occasionally and very often. TWC has told me that the issue is that my wires are tangled up which I know is a lie because it's obviously something either wrong with the cable box or something on their end. Since the HD Tivo would eliminate the need for a STB, I'm wondering if it would allow me to watch Modern Marvels without the sound dropping out?