My THD is about 2 mos old now. I'm on Time-Warner digital cable with cable cards and tuning adapter. I've read a lot in this forum and in the TiVo support pages, and have familiarized myself as much as possible with the TiVo's diagnostic pages. As far as I can tell from all of this research, my TiVo is functioning as it should and tuning all the channels it is supposed to. However, my viewing quality isn't perfect. Most of the time the picture is excellent on all channels but on almost any channel I pick, it is rare to be able to watch for an hour without at least one A/V glitch. The video glitches may be pixellation or momentary freezes. Audio glitches are momentary drop outs. Most of the glitches are fraction-of-a-second but a few are worse than that. On most channels, most of the time, the number of glitches per hour will range from none to several, but some channels, sometimes, have more frequent glitches, maybe 20 or so per hour. My signal strengths are in the 80-99 range on all channels and the number of RS Uncorrected errors is usually zero, or at most a few, any time I check. I have the impression that the glitches are more frequent on HD SDV channels but no hard statistics. They definitely occur also on non-SDV channels. I had an S2 for 3 years and I know the number of noticeable video glitches then was much less than what I'm seeing now. I have to make the decision whether this viewing quality is reasonably acceptable so I should just live with it -- or -- it should definitely be better and I should go through the hassle of trying to get TWC and/or TiVo to do something to improve it. My impression from what I see in posts here and from my own limited interaction with TWC and TiVo is that there isn't any action that either of them will take that is likely to improve things. So I'm asking other users to post what they think are reasonable expectations. Should I let (almost) well enough alone, or is it worth a battle for improvement?