Here I am going to put some tips for setting up a home theater..
Take care that you read the instruction booklet and illustrations for all your mechanism that delineate your connection options.
Confirm that you have the correct audio, video, and loudspeaker connection cables, at the right lengths, to connect everything up. If you fail to notice something, don't fear, you just might need to make an extra trip to Radio Shack; it happens to all of us at some point during the setup procedure.
Don't vacillate to contact customer support for your product or your cable TV provider for further setup tips.
Do not place your loudspeakers flush against walls, they should be set away from the wall, the amount of optimum distance away from the wall facade may vary from speaker type to speaker type. If the task becomes irresistible and nothing seems to be "right", don't hesitate to pay someone (such as an installer that subcontracts with your local dealer) to do it for you.