I cant say I know 50 D* HD subs, but I know at least a dozen. I also know at least a dozen people with Charter HD.
Everyone I know has audio sych issues with D* HD from the beginning of time, including myself.
Everyone I know that has Charter HD never has audio sync isues, including myself when I subbed up to about 10 weeks ago.
Audio sync is a super common issue with all DBS providers, has been since the beginning of time. To say its not a D* problem is pretty much ridiculous. Search DBS, search here, search AVS. You will find tons of thread dating back a long time with many many people having D* and E* audio sync issues.
This charper guy defends D* as if his life depends on it, always has, always will.
Audio sync is a fact of life with D*. If one doesnt notice the problem they either a). dont watch very much TV, or b). they arent paying attention, or c). they are just simply full of it.
HDMI 1.1, 1.2, 1.3, component. It doesent matter, audio sync will be a random problem from time to time with D* HD.
My 7 year old gets irritated with the audio sync issues on D*. Saying its not a D* issue is pretty much laughable.