@ hofverberg - that's what I was planning on doing, was including the LPCM on blu-ray only and on dvd ac3@384kbps for English and 192kbps for all others.

@ALL - I'm hoping to resolve this issue with those troubled episodes that I mentioned in the last post because frame-by-frame correction is going to be time consuming as hell and I hope someone will have an easier suggestion ;)

UPDATE: Thanx to Andrea for verifying whether I'm running my scripts correctly and trying some himself, I now know that these extremely troubled episodes will actually have to be fixed frame-by-frame. NOT a problem, but will be time-consuming for those episodes. Fortunately, it's very few in the whole series.