Despite using a less sophisticated implementation of LED technology, Samsung's 7000 series LED based LCD TV's deliver a startlingly good performance.
LED TVs use a technology which replaces the traditional always-on single bar-style fluorescent backlight present on the majority of LCD's with hundreds of Light Emitting Diodes (LEDs).
LED technology offers a number of advantages over normal backlighting, including faster response times, a wider colour palette and better contrast. By removing the bulky backlight much slimmer LCD TV's can be produced - reflected in the 7000's depth of just 30mm.
The B7000 implements edge-mounted as opposed to 'direct' LED technology which has the added benefit of 'local-dimming' whereby 'banks' of LED's can be dimmed individually - offering the possibility of pure black elements sitting directly alongside pure white elements.
Commentators were rather sceptical when Samsung claimed that edge-mounted LED's could produce better contrast than locally dimmed LED's if set up correctly and could actually react faster to changes in picture brightness.
Confounding the sceptics, first impressions indicate that Samsung's B7000 series does offer black levels which are comparable, if not better than Samsung's and other manufacturers implementations of 'direct' LED TV's.
Furthermore, the superb contrast levels are delivered alongside a wonderfully rich colour palette along with surprisingly bright elements sitting comfortably alongside darker elements.
By offering their B7000 series at a substantial discount to similarly sized LED TV's which implement LED technology with local dimming, Samsung seem to have stolen a significant march on their competitors.
Samsung UE-40B7000 (40B7020) 
Samsung UE-46B7000 (46B7020)
Samsung UE-55B7000 (55B7020)
Read a full review of the Samsung UE-40B7000.
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