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LCD TVs consist of two, perpendicularly arranged panes of polarized glass "stuck together" by a liquid-crystal-filled polymer solution. When they are exposed to electrical currents, the crystals untwist to varying degrees, permitting specific amounts and colors of light to pass though them. Flat screen LCD TVs are, in effect, projection TVs that depend on an extremely bright lamp as their light source, so they're considered a "passive" display.
These are some of the facts to be noted while shopping for a flat panel LCD TV. Look for a HDMI input. This port is built for handling Digital signals. The quality of Picture you get depends on the quality of Signal received by the LCD TV. If the signal quality gets low the Picture quality also suffers. A HDMI port receives the digital signal without causing any damage and hence the Picture quality remains high. Moreover this type of Port is necessary it keeps the signal all-digital, avoiding degradation that can occur as the signal passes through other components HMDI carries high-definition audio as well as video. Some satellite receivers and DVD players also connect through this port.
The Room size in which the LCD TV is to be placed is all important as it determines the viewing pleasure. LCD TVs have higher resolutions than conventional TVs but you can you can sit closer, so you can view a larger screen comfortably.
Another feature to be decided before buying a LCD TV is the provision of picture-in-picture capability. This allows you to see two Pictures at the same time from two different Video sources, one picture occupying the full screen and the other running on a small window on the screen, with ability to switch between the two at will. If you do want picture-in-picture in your flat panel LCD TV, keep in mind that single-tuner picture-in-picture lets you watch TV in one window and another source in the second window.
And small HD-ready LCD TVs can be found for $500 or less, which is cheap enough. Check to see if the TV comes with a stand or mounting hardware. Most flat panel LCD TVs come with a basic table stand, but wall-mounting hardware costs an additional $100 to $200.
Some manufacturers have strict policies regarding authorized dealers. Make sure you're comfortable with the risk of not having a warranty, or make sure you ask the dealer for information about their warranty terms for the flat panel LCD TV you're considering.
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