The PS51D6900 employs active 3D technology and comes with just one pair of glasses, although extra pairs of the most basic sort can now be found for as little as £50. Anyone after more sophisticated eyewear, meanwhile, can buy the (rechargeable, lightweight) SSG3300 versions for just £70, while the premium SSG3700 specs sell for about £90.
This is great news, as it substantially reduces the full price a normal family might have to pay to get into Active 3D viewing.
The PS51D6900 also boasts Samsung's impressive 2D to 3D conversion circuitry, which works with five different depth 'cues' versus the two or three usually exploited by 2D to 3D technology.
The 3D sync transmission platform is Bluetooth, rather than infra-red, which, according to Samsung, delivers a more stable connection, especially if there are many people watching at once.
The PS51D6900 benefits greatly from Smart TV. The new 'Hub' main menu screen uses a lovely collection of icons to provide instant access to an amazing range of sources, including everything from the built-in Freeview HD tuner through to your AV inputs, all the multimedia stuff stored on your PC or USB devices, plus Samsung's online content and apps, which now include BBC iPlayer and a 3D portal. The latter currently features trailers of 3D films, a trio of documentaries including one exploring William Hearst's 'castle', some obscure music videos and a bunch of kid's programmes, many of which appear to hail from Korea.
Other highlights of the PS50D6900's online apps and services are LoveFilm, AceTrax, YouTube, Facebook, Twitter and the vTuner Internet Radio server. There are also games galore and loads of specialist information apps, adding up to a very impressive overall app count.
The PS51D6900 might not bear endorsements from either the Imaging Science Foundation or THX, but it is certainly not short of set-up aids.
The colourful and clear onscreen menus include a small selection of picture presets (Movie, Standard, Relax and Dynamic), an unusual 'Cell Bright' option that enables you to adjust the pixel brightness (in addition to a normal, general brightness option), and all manner of options in an Advanced menu including black tone boosters, a dynamic contrast tool, gamma adjustments, white balance fine tuning (via offset and gain tweaks for the RGB colour elements), a 10-point white balance adjustment, a skin tone booster, an edge enhancer, and a Motion Lighting feature that adjusts the brightness levels of the picture automatically based on the amount of motion being shown, in a bid to reduce power consumption.
Some of these features – specifically those that involve processing - have to be treated with kid gloves or often turned off completely because they can sometimes do as much harm as good. So long as you bear this in mind, it's always good to find TVs offering as many picture personalisation tools as possible.
The PS51D6900 is well set up for multimedia, with built-in Wi-Fi that enables you to go online or access stuff on your PC without a physical connection, as well as two USBs for playing back most photo, video and music file formats or for recording from the HD tuners to hard-disk drives.
Other useful connections include four v1.4 HDMI inputs and a D-Sub PC port.