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Forking out a few thousand dollars or even just a few hundred is a serious investment, and the last thing you want to do is buy an HDTV with lousy color rendition. Navigating the minefield in consumer electronics is a confusing proposition even for the seasoned gadget geeks, so I created this survival guide to help you make a wise decision. I'll explain the various types of HDTVs as well as cabling and testing the color depth of your display.