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LED vs. LCD TV: Which is better?  Why do LCD screens need a backlight?
 

LED-backlit LCD television  from Wikipedia, the free encyclopedia
 

LED TV 2010 Review Get the Most Out of Your TV & What to Look For in an LED TV & Why Upgrade Your Current TV to an LED TV?
 

LED backlit TVs will change the way you think about TVs. LED TVs are slimmer, brighter, and more detailed than your traditional LCD TV.

2010  Best 5 HDTVs: Picture quality
60Hz vs. 120Hz vs. 240Hz vs. 480Hz - LCD Response Rate
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Samsung unveils world's first 3-D LED TV sets