It used to be when you wanted a Tv you went down to your local electronics store and bought the Tv that you notion looked best that fit into your allocation and since they all used the same technology, everything else was pretty much equal.
These days there are some distinct Tv technologies floating around, but the two vying for top photograph supremacy are Led technology (which is just a fancier Lcd Tv) and plasma technology. I notion I'd do a itsybitsy comparison of the two to help you make a more informed choice.
Price - benefit Plasma
While Led prices have been advent down dramatically over the past year, they still tend to cost more when compared to comparably equipped
Black Levels - benefit Plasma
The big claim of the Led Tvs has been that when they use a fully backlit array, their black levels (and dissimilarity ratio - see below) rival plasma Tvs. And while they're getting much closer plasma still wins the day when it comes to deep blacks typically found on your old cathode ray tube television.
Brightness - benefit Led
This factor is especially inescapable among older generation Tvs, but even newer Led screens are much brighter than plasma screens. After some years, there will be a more dramatic dissimilarity as plasma Tvs lose glow more swiftly than Led/Lcd technology.
Contrast - benefit Plasma
The big benefit offered by Led Tvs over their lesser Lcd counterparts is that they have good dissimilarity ratio and refresh rates. They're surely starting to catch up to the plasma Tvs but plasma still wins in this division and does so for less money.
Selection - benefit Led
Most Tv manufacturers have dropped out of the plasma Tv store entirely so your selection of Tvs is itsybitsy to a few choices from Panasonic, Samsung, and Lg. So if you want a huge selection of Tvs to choose from, you may want to go with Led as there are many more Lcd and Led Tv manufacturers.
Energy Use - benefit Led
The big knock on plasma technology that continues to this day is energy use. It can cost /month more to power a plasma screen for a month than for the same size Led screen. So if you watch a lot of Tv, you may want to think the more energy efficient selection as those costs will add up over time.
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Samsung PN50C7000 50-Inch 1080p 3D Plasma HDTV (Black) Feature
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This and other models in the S2 line offer Panasonic's VIERA Image Viewer feature, which enables you to play slideshows of JPEG images stored on SD memory cards, as well as the VIERA Link feature for controlling a variety of compatible components--from Blu-ray Disc players to digital cameras--through a single remote. This model also includes Panasonic's Clean Touch Bezel, which resists fingerprints to help keep the surface clean. 
