Samsung's LE40A656 and LE40A686 LCD TV's share the same technical specification, with the differences between the two screens being purely cosmetic.
The LE40A686 is more rectangular in appearance and also has a rectangular pedestal. With a slimmer profile and a 'cleaner' appearance than its A656 sibling, the LE40A686 has a more understated but supremely classy appearance.
The LE40A686 sports the latest incarnation of Samsung's picture processing technology, DNIe (Digital Natural Image engine), 'DNIe Pro'. With a Motion Optimizer, Contrast Enhancer, Detail enhancer and Colour Optimizer, DNIe Pro works to improve four main aspects of the LE40A686's performance and has a track record of producing impressive results on previous LCD and Plasma offerings from the Korean electronics manufacturer.
Translating a Standard Definition (SD) into 1920 x 1080 pixels was never the best recipe for a truly accomplished picture performance, but the LE40A686 does as good a job as we could have reasonably expected. In fact it is one of the most accomplished SD performers we have come across. There is some on screen noise, but Samsung's picture processing engine, DNIe keeps it to a minimum.
Read a full review of the Samsung LE40A686
Samsung LE40A686 
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