Samsung LN40B650

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Samsung LNB650 series

Among Samsung's umpteen different model lines and feature variations for its 2009 HDTVs, the LNB650 series sits somewhere in the middle. It's significantly less expensive than the LED-based LCDs, like the UNB7000 series, and costs a bit less than the LNB750 series of non-LED 240Hz models, yet still commands a premium over entry-level models. Aside from a couple hundred bucks, 120Hz of refresh rate separates the B650 and B750 models on paper. In person, the B650s have significantly different styling and, it turns out, somewhat less impressive picture quality, although the difference in Hz has nothing to do with it. The LNB650 series still produces a very good picture, however, and as usual we liked Samsung's implementation of dejudder processing. Sure you'll pay a bit extra for the numerous features, but you've always wanted a TV that can suggest recipes or keep tabs on your Twitter feeds, right? All told the LNB650 series makes a solid choice for an upper- midrange LCD, as long as you can handle its unusual looks and glossy screen.

Series note: We performed a hands-on evaluation of the 46-inch Samsung LN46B650, but this review also applies to three smaller models in the series: the 40-inch LN40B650, the 37-inch LN37B650, and the 32-inch LN32B650, as well as the larger 55-inch LN55B650. All of these sizes in the series have identical specs aside from screen size, and should share very similar picture quality.

Design
Editors' note: Many of the design and features elements are identical between the Samsung LNB650 series and the Samsung LNB750 series we reviewed earlier, so readers of the earlier review ay experience some déjà vu when reading the same sections below.

Much like the Samsung A650 series from last year, the frames of the 2009 B650 models look quite different from your normal glossy-black LCD in person. The company's Touch of Color scheme dictates a red fade along the edges of the frame that becomes black toward the screen. We're definitely not fans of the overt coloring, as opposed to the more muted look of the B750 models, and we're even less impressed by the obtuse-angle "V" shape along the bottom of the frame. At least the company included a matching glass-topped stand with its signature clear stalk.

Red accent color is clearly visible on the LNB650 series.

The point of the "V"-shaped bottom edge angles toward the clear stalk, which allows the TV to swivel.

Samsung used the same menu system as last year, this time with red borders, and we still think it's one of the best in the business. Big, highly legible text is set against transparent backgrounds that occupy almost the whole screen. Getting around is easy and there's helpful explanatory text along the bottom to describe the different selections.

The red accents in the main menu system match the TV's "Touch of Color."

The remote control is basically the same as last year, too, and we're definitely fans--especially since Samsung ditched the rotating scroll wheel. The buttons are big, backlit, and easily differentiated by size and shape, and we liked the dedicated "Tools" key that offers quick access to picture and sound modes, the sleep timer, and the picture-in-picture controls. We didn't like the remote's glossy black finish, however, which picked up more than its share of dulling fingerprints after a few minutes.

Features
Pretty much the only features-related difference between Samsung's LNB650 models and the more-expensive LNB750 series is refresh rate. The 650s have 120Hz refresh rate, while the 750s refresh the screen at 240Hz. The main benefit of the higher refresh rate, according to our tests, is improved motion resolution--aka less blurring--but with normal program material the difference is nearly impossible to appreciate. See Performance for more information.

Both of the series feature identical implementations of Samsung's Auto Motion Plus dejudder processing, with its cool Custom setting that lets you tweak blur reduction and judder separately.

Samsung's Custom dejudder processing offers more adjustability than other brands'.

Samsung has added Yahoo widgets to its higher-end sets including the LNB650 series. The system gathers Internet-powered information nodules, called "snippets," into a bar along the bottom of the screen. The model we reviewed came with widgets for stocks, weather, news, and Flickr photos, plus Yahoo video, sports scores, poker, trivia, Sudoku, and Twitter--and more are sure to appear in the near future. For more information, check out our full review of Yahoo widgets. That review was based on our experiences with a Samsung UN46B7000, and our impressions of the system on the LN46B650 are mostly the same, including its sluggish response time.

When activated, Yahoo Widgets' "snippets" appear in a banner along the bottom of the screen; selecting a snippet opens the full widget.

Yahoo widgets--photos: HDTVs

The Flickr widget lets you explore other people's photos, as well as view your own.

A full-screen Sudoku game is one of the earlier widgets found in the Gallery.

Other interactive features on this set abound. It can stream videos, photos, and music from DLNA-certified devices via the network connection, as well as from its USB ports, which can connect to MP3 players, USB thumbsticks, and digital cameras (we didn't test this capability). There's also built-in "content," such as recipes, games, workout guides, and a slideshow of high-def art and photos with music. We went into depth discussing the underwhelming content features last year, which are similar this time around, so for more details check out the Interactive section of the 2008 Samsung LN46A750 review.

The Content library has selected games, recipes, and other items, but it's still pretty lame.

Aside from the adjustable dejudder mentioned above, we also liked the myriad conventional picture tweaks, starting with four adjustable picture modes that are all independent per input. There are five color temperature presets augmented by the ability to adjust each via a custom white-balance menu; three levels of noise reduction, including an automatic setting; a film mode to engage 2:3 pull-down (it also works with 1080i sources); a seven-position gamma control that affects the TV's progression from dark to light; a dynamic contrast control that adjusts the picture on the fly; a "black tone" control that affects shadow detail; and a color space control that lets you tweak the Samsung's color gamut.

As usual, the white-balance menu proved a boon for fine-tuning color.

You can choose from four aspect ratio modes for HD sources, two of which let you move the whole image across the screen horizontally and vertically. As we'd expect from a 1080p TV, one of those modes, called Screen Fit, lets the LNB650 scale 1080i and 1080p sources directly to the panel's pixels with no overscan--the best option unless you see interference along the edge of the screen, as can be the case with some channels or programs.

A convenient Contact Samsung screen is available for situations when you need it.

We appreciated the three power-saver modes, which further reduce energy use. Samsung also throws in picture-in-picture, an "E-manual" on a USB stick, and even a customer care screen that includes the firmware version for when you need to call the company. We're also big fans of the new-for-2009 capability, unique among HDTVs, to get firmware updates via an online download, rather than making you go to the Web site, as was the case before.

Three HDMI inputs and a PC input, along with a LAN port for Interactive capabilities, grace the back panel.

The side includes a fourth HDMI port, an AV input, and a pair of USB ports.

The LNB650 series offers very good connectivity, although it does follow the recent trend of spurning S-Video inputs--not one is to be found on this TV. The back panel sprouts three HDMI ports, two component-video inputs (one of which can be sacrificed for composite-video, if you need it), one VGA-style PC input, one RF input for cable and satellite, the Ethernet (LAN) port, and one stereo analog and one optical digital audio output. The TV's side panel offers a fourth HDMI, two USB, and one AV input with composite-video.

Performance
Accurate color in bright scenes and the customizable dejudder processing are among the Samsung B650's picture quality strengths, while its bluish color in black and near-black areas and shiny screen in bright rooms were the most significant issues we encountered. All told, however, the LNB650 series is still one of the better-performing LCDs we've tested.

Setting up the B650 we first chose the Movie preset, which came closest to our ideal settings for home theater in a darkened environment. Our calibration involved reducing light output a tad to hit our 40ftl target, increasing the gamma setting to bring out shadow detail and more closely approach our 2.2 target (we ended up at an excellent 2.24), and tweaking the grayscale. The grayscale adjustment wasn't as effective as we'd like to see--the scale still varied quite a bit, especially in dark areas--but otherwise the Samsung's numerous adjustments did the job well.

To compare the Samsung LNB650 series we lined it up next to a pair of Sony LCDs--the KDL-52V5100 and the KDL-52XBR9--as well as the JVC LT-46P300 and Samsung's own LN52B750, both LCDs as well. From the plasma camp we included the Panasonic TC-P46G10 and our reference Pioneer PRO-111FD. Most of our image quality tests were conducted with the help of "Gran Torino" on Blu-ray.

Black level: The depth of black delivered by the LNB650 was relatively good, albeit not at the level of the best LCDs we've tested this year. In the dark scenes in Chapter 6, for example, when Eastwood goes after the nocturnal intruder in his garage, areas like the letterbox bars and black shadows in the room were about as dark as the Sony displays but not as deep as the JVC, the Samsung LNB750, or either of the two plasmas. When he confronts the intruder with his gun we could make out adequate detail in the shadowy areas along his face and hands, but these areas didn't look as natural as on the V5100, the B750, or the two plasmas, although they were a bit better than on the XBR9 and the JVC.

Color accuracy: In bright scenes the Samsung B650 delivered solid color accuracy, thanks in large part to its nearly perfect primary and secondary colors as well as spot-on color decoding. When Father Kowalski approaches Eastwood on his front porch in Chapter 8, for instance, the red and blue of the American flag and the green of the grass and shrubs in the yard looked nearly identical to the same colors on our reference display. The priest's pale skin tone didn't appear as close in the shifting illumination under the porch, taking on a bluer-then-redder aspect at times (an issue that might be the fault of grayscale variance), but it was still very good overall, and better than most of the other displays with the exception of the Samsung B750 and the reference. Saturation was also very good for an LCD, and bright scenes looked relatively rich and realistic.

The B650's biggest weakness in this category was caused by its blue cast in dark areas. Many LCDs "go blue" during dim scenes but the B650 was worse than most, and the worst in our lineup. The issue was most obvious in nighttime scenes like the beginning of Chapters 6 and 7, but in brighter scenes we even noticed a blue cast to darker shadows.

Video processing: Like other 2009 Samsung LCDs the LNB650 series features adjustable dejudder processing, with a Custom mode that lets you turn down the smoothing effect while preserving the antiblurring properties of the 120Hz refresh rate. We got the best results by turning Blur Reduction to 10 and Judder Reduction to zero.

Such a setting preserved the native frame rate of film when we watched in 1080p/24 mode--visible in the juddery-but-not-hitching motion of the camera over Eastwood's porch in Chapter 8, or in the pan that follows the kids as they turn the corner in Chapter 9--but didn't smooth these shots artificially or remove the judder of film. With dejudder turned off, or the judder reduction control reduced to zero in Custom mode, the B650 also properly preserved film cadence during the flyover of the Intrepid from "I Am Legend."

If you want to engage dejudder you'll see the smoothness kick in. Turning up the Judder Reduction control in Custom, or engaging the Standard or Smooth preset modes, made the motion look less film-like (and worse, to our eye) and also tended to introduce artifacts. When the punks push Sue around in Chapter 9, for example, her head moving quickly against the background of the chain-link fence was surrounded by a faint halo, which became more obvious with more dejudder applied (and downright strange-looking in Smooth). The effect in their respective Standard modes was less obvious on the Sony displays than on the Samsungs, but of course with the Samsungs' adjustable judder we could dial in the smoothness--and accompanying artifacts, or lack thereof--as we wanted. The dejudder modes of the B750 and B650 behaved the same as far as we could tell.

The main processing difference between the two came not when watching regular program material, but when we shifted to the patterns in our motion resolution test. The B650 scored similarly to most other 120Hz displays we've tested, delivering between 500 and 600 lines, whereas the LNB750 scored a typical (for a 240Hz model) 900 to 1,000 lines. As usual, we found it nearly impossible to tell the difference between the two, or indeed between either one and the 60Hz JVC, when watching normal program material as opposed to test patterns.

In our still resolution tests the Samsung performed as expected, delivering every line of 1080i and 1080p sources and de-interlacing film- and video-based sources properly. The TV must be set to the Screen Fit aspect ratio and Auto 1 Film mode to pass these tests.

Uniformity: The LNB650 delivered relatively solid uniformity across the screen compared with the other sets in the lineup. Its sides and corners were a bit brighter than the middle, but there was no obvious bright spotting as we saw on the Sony XBR9. From off-angle the set washed out at about the same rate as the other displays, although the bluish tinge crept into the opposite side more noticeably when seen from one side or the other.

Bright lighting: Samsung used the same sort of glossy screen as last year, and the same one found on the B750, and we're still not fans. In bright lighting, with windows facing the screen and overhead lights turned on, the screen does a very good job of preserving black levels in dark areas. However, the trade-off is overly-bright reflections from those light sources and from other bright objects in the room, such as this reviewer's shirt. These reflections were much less bothersome during bright scenes, of course, but in darker scenes they proved distracting.

Standard-definition: The B650 did a very good job with standard-def sources, beginning with the ability to resolve every line of the DVD format and deliver sharp details in the grass and stone bridge of our sample clip. It was the best of the sets in our lineup at removing jaggies. Noise reduction was also solid, although the Auto option was less effective than simply choosing from the three manual settings. The Samsung also engaged 2:3 pull-down correctly when we selected either of the Auto settings for Film Mode.

PC: Samsung's LNB650 series delivered excellent performance with HDMI sources from computers, resolving every line of a 1,920x1,080 image with no overscan or edge enhancement. The image did appear softer via VGA, and resolution wasn't quite full, but it was still very good.

Power consumption: We did not test the power consumption of this size in the Samsung LNB650 series, but we did test the 46-inch version. For more information, refer to the review of the Samsung LN46B650. How we test TVs

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