Fancy Ads - If you are planning to buy the HDTV online, think again. How the TV looks in those fancy ads could be entirely different when you install it at your home. Also, when you see a TV in a store, the lighting environment could affect the appearance of the picture quality. When you bring it back home, it may look different than what you saw in the store.
Size does matter - When you view a HDTV in a store, it may either look small or bigger depending on the TVs that are placed next to it. Since at your home, you may install just one of those, do consider to measure the display area and screen size before you decide on the size of the TV.
Missing models? - This is not applicable to all the stores but only handful ones who advertise about a particular model with lot of discounts and when you arrive the store, you will never find it there. Common excuses to hear - TV out of stock or already SOLD. Mind you, that TV was never in stock but just used in ads to get you there. Don’t end up buying something else, get what you want.
Digital Audio - If you are buying a HDTV, the standard of audio should be Dolby digital Surround and that should be your first choice too. Many manufacturers use their proprietary audio systems in the HDTV models they sell. These proprietary audio systems could produce quality audio but Dolby digital should be your first choice. Most HDTVs do not come with complete audio speakers system, so, when you buy an external speaker system, stick to one that’s Dolby compatible.
Delivery and Installation - Make sure to talk to the store guys about what needs to be done after you buy your HDTV. Talk about additional charges, if any, that you will need to pay the guys who will install the TV at your home. Discuss in detail about the Warranty, service contracts, on-site repair charges etc.