Advertisements For what its worth (don't flame the messenger) I just got off the phone with TiVo Customer Support. According to them they are aware that this did NOT fix many of the macroblocking problems. They only expected a marginal improvement from this fix. They are continuing to evaluate the problem but have no estimate of progress at this time. I saw what appears to be a very slight improvement; but still fairly frequent macroblocking and audio dropouts (approx every 5 minutes). I'm running 8.1.7b2 on two SA S cards. I'm within a week of having to make the keep-it-or-return-it decision.