Summary: Solid overall 2D and 3D picture quality, as well as a wealth of features and beautiful looks, mark the Samsung UND6400 as one of the better edge-lit LED-based LCD TVs we've tested.
Pros: The Samsung UND6400 series offers beautiful, compact styling with an ultrathin bezel and panel for a nearly all-picture look. It produces relatively deep black levels for an edge-lit LED-based LCD TV, with accurate color in bright areas, excellent video processing, and improved 3D picture quality. The Smart Hub Internet portal boasts more apps and streaming services than the competition.
Cons: This Samsung LED TV is relatively expensive. Its picture suffers from imperfect screen uniformity and blue-tinged darker areas, while its glossy screen reflects a lot of ambient light. The UND6400's Smart Hub lacks Amazon Instant, its search is next to useless, and its interface can be cluttered and confusing.