Our measurements

Black levels:	0.05 to 0.13 cd/m²
ANSI Contrast:	1473:1
Average Gamma:	2.2 (varies)
DeltaE on PC :	2.6
Relative energy consumption:	238 W/m²
Homogenity of whites:	2.8/5
Clouding:	5/5
Brightness discrepancy at 45° (98% black):	1.18 cd/m²
DeltaE at 45°:	6.9

• LN46B750 46" LCD TV...
• • OneCall.com
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While we waited to get our hands on its latest LED-backlit TVs, we've had a chance to test one of Samsung's more traditional models, lit by fluorescent tubes.  The LN46B750 is nevertheless a well equipped television, with Full HD, a built-in digital tuner and an excellent list of technical features including DLNA compatibility, Motion Plus interpolation at 240 Hz and a backlit remote.  On paper, at least--where Samsung also claims it delivers excellent contrast--it's an impressive piece of hardware.

Build Quality and Design

And, to be fair to Samsung, it's true that very little is missing from the LN46B750. As well as the features listed above, it also has a rotating stand, an Ethernet port and comes with Wiselink, allowing it to access online content. If your TV isn't close enough to your router to utilize wired connectivity, the LN46B750 also comes with a USB WiFi key, allowing for Internet connectivity anywhere in your house.



The backlit remote is noteworthy not just because it's easier to use in the dark, but also because it's been redesigned and is easier to use. The menus have also been given a redesign, and now look more modern with animated elements.

The LN46B750 has almost everything you'd expect on a high-end modern television and no doubt actually has more than a lot of people would ask for.

Image Quality

As is so often the case when testing HDTVs, our measurements based on the default settings showed a heavy bias in favor of increasing the contrast at the expense of ruining the gamma curve. The division of different shades of grey from black through to white is not at all even, meaning some dark areas of the frame end up appearing completely black, while lighter areas fade to a pure white. We measured blacks between 0.08 and 0.24 cd/m².

To avoid these problems, it's usually best to activate 'Cinema', 'Film' or 'Expert' mode, depending on the model in question, while turning off dynamic contrast and backlighting along the way. The backlighting continued to change from one scene to the next, with blacks varying from 0.05-0.13 cd/m², while whites bounced around between 82 cd/m² and 195 cd/m².  At just 82 cd/m², the greyish color you see on screen is hardly worthy of the name white. These fluctuations in brightness are very noticeable to the naked eye, and last tenths of a second as you move from one scene to another.

Excellent average DeltaE scores mean this TV produces accurate, faithful colors

It's a real shame that you can't deactivate this feature, as the other measurements we took all stood up rather well. Color handling is perfect with no clouding, meaning an entirely black screen is even. When you move away from looking straight at the screen, the level of black falls away and dips to a grey-blue.  The DeltaE score, which measures the discrepancy between the 'real' colors and those actually shown falls from a very good 2.5 when looking directly at the screen to 6.9 when sitting at a 45 degree angle.

Ghosting is almost entirely absent thanks to the 240 Hz Motion Plus feature, which also works with films. It's not without its faults, as it sometimes creates artifacts behind moving objects. This happens very rarely, but as it's there even when Motion Plus is at its lowest setting it can't be ignored.

In practice, when it comes to watching TV shows or movies, the picture is very good and HD content doesn't suffer. Standard definition is a little worse off thanks to rather weak upscaling.  This TV also works perfectly when connected to a computer, with the only problem being an input lag of 4 fps which might put avid gamers off.

Sound Quality

Energy Consumption
Using just 0.1 W when on standby and averaging out at 238 W while switched on, the LN46B750 is one of the most energy-efficient TVs we've ever tested. The use of dynamic backlighting contributes to that, meaning it's unfair to compare it with other TVs which allow this feature to be deactivated. Those other sets, on the other hand, manage to produce better quality images.