
Three larger-sized models the 55-inch XVT553SV, the 47-inch XVT473SV, and the 42-inch XVT423SV—use full-array LED backlights that have more zones that can be locally dimmed than previous models. By enabling some zones to be dark while others remain illuminated, local dimming can help improve black levels. Other features in these sets include Vizio's 240Hz technology, and it’s VIA online service, with access to streaming movies from Amazon, Netflix, and Vudu, and the Rhapsody music service.
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