Call me if you need pre-purchase advice.  I will save you a lot of time and money, helping you avoid costly mistakes.

To better understand your application I will ask you about your video and audio requirements, and a budget.

I will tell you what system/equipment is the best for you, what kind of input/output connections you will need to avoid incompatibility problems.  I will explain what every connection is for and why you need it or not.  I will work with you to design the best Home Theater for you.

Most common mistakes made by people buying HD TV:

1. To small TV.  If you buy Full HD TV the with of the screen shouldn't be smaller than half of the watching distance from main position.  For more info look here
2. Wrong technology.
3. Improper room design.

Before you buy new HDTV you should at least read this article