One of the downsides to digital video is the audio has a tendency to get out of sync. We see it on broadcast TV as well as Blu-ray Discs, the issue is literally everywhere. Many AV receivers have a audio delay feature, and even some Blu-ray players, but which is the best and exactly how do you calibrate them? There are plenty of test patterns for tweaking everything from contrast, to overscan, but what about audio sync? And other than good reference material, what other techniques do you use to figure out exactly how much delay is needed? Now we realize that HDMI 1.3 has some built in audio sync magic, but while it works on some titles, it makes others worse. So tell us dear readers, please, how exactly do you fix lip sync issues?