How to fix Lip Sync Issues when using Home Theater System?

If you have a digital cable box hooked to the TV, you need to directly hook it up to the system. Just bypass the TV entirely. What is happening is the analog signal has to be converted to a digital signal on the TV then back again on the system. This slows down the audio process. This is a common problem. The processors used in these cheap TV & theater system (what a joke) are just off the shelf parts that the maker contracted to the lowest bidder. Often times you would be surprised at just how old that technology is by the time they get around to making the theater systems themselves. I don't know what TV you have, but the best piece of equipment you have is the X-box.