I've recently noticed that a number of programs are very noticeably out of voice-video sync. On closer inspection I can see a very slight out-of-sync condition on most programs.

Question - is this a general condition found in digital FTA broadcasts (not TiVo related)?

or

Question 2 - Looking at the flow of program material, starting out analogue, then converted to digital (A/D #1), broadcast FTA, set top box converts back to analogue (D/A #1), then TiVo re-digitizes (A/D #2) and finally TiV converts back to analogue (D/A #2). Is it possible to retain voice-video sync given all the A/D D/A conversions?

Phred