I understand what you are saying, however, I am unable to try as we only have the one TV and it happens to be an LCD. If the image doesn’t lose sync there you know what the problem is. To eliminate this as an issue, try feeding one of your files from your Live unit to an older TV via composite (and older set that doesn’t have HD, of course).
However, on my HD projector I don’t have a delay set at all (either it’s doing less processing or it’s much faster than my TV, because both are fed by a Live unit with the same sources, and both are running through a similar AV receiver). In my bedroom setup, for example, I have set the delay to around 70ms. Usually you can delay the sound by up to 100ms (which is enough for almost any problem). It varies by device and by how much processing is doing on in the image (modern HDTVs can do a ton of image processing nowadays). This is normal and is so common most receivers have a setting for it (usually calling it “lip sync” or “audio delay”).
However, when you feed the audio through a receiver and are feeding the image through HDMI to a modern HDTV which needs to decode it the image will “lag” behind the sound slightly due to the image processing time I use AnyDVD on hundreds of DVDs and blu-rays, converting to MKV and have NEVER seen a sync issue (and would be surprised if there was one). When you say “a little out of sync” how much are you talking about? And how have you attached the audio and video to your TV?
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