This TV is available in three sizes: 42" (42LM660T), 47" (47LM660T) and 55" (55LM660T).
DESIGN & BUILD
Like LG's other high-end TVs, the LM660T has the firm's stylish Cinema Screen design, and the screen bezel is just 5 mm thick. All in all, it's a pretty sleek piece of kit!
The LM660T is compatible with HbbTV for interactive viewing and live TV controls, and offers access to LG's Smart TV platform. This feature is particularly well designed, and the simple, smooth navigation is a real treat. However, there aren't that many interesting apps.
There haven't been any updates to the built-in media player, but that's no real problem since it handles pretty much any file you throw at it. The only thing it can't handle is movie chapters.
This TV can be controlled in three different ways. First of all, there's a traditional remote that's pretty standard fare and has no built-in backlighting. Next, there's the Wii-mote style device for motion control, which is fast and accurate to use—we're big fans! Finally, you can download an iOS or Android app to control the LM660T with your tablet or smartphone.
You'll need to change a few settings in the internal menu (see inset) to get the best from this TV.
The good news is that colours are reproduced accurately. We measured an average Delta E of 3.4 (the difference between perfect colours and those displayed onscreen, with anything under 3 considered accurate). Plus, with the gamma at 2.2 and colour temperature at 6409 Kelvins, we really couldn't ask for much more—it's perfect!
However, the big downside of LG's IPS screens is their low contrast. We measured just 800:1 in the LM660T, which is way too low! At best, you end up with a very dark grey instead of a real, deep black, which can be particularly annoying when watching films!
Although IPS screens have a great reputation for wide viewing angles and consistent display quality, you wouldn't guess that from this TV. The LM660T only scored 1.9/5 in our viewing angle tests and showed an average variation in brightness of 13% across the display. We've seen other types of LCD panel do better—Panasonic's Alpha-IPS panel, for example, scored 3/5 for viewing angels with just a 6% average variation in brightness over the screen.
Unlike other types of LCD technology, standard IPS hasn't really seen its responsiveness improve. In fact, it's as slow as ever, with 12.5 ms on average compared with 7.5 ms for Alpha-IPS. Ghosting (shadow images trailing behind moving objects) could therefore prove problematic for some demanding users.
That's all the more of a shame since the input lag is really low in the LM660T. We measured an average of 33 ms, which won't penalise gamers at all.
Seeing as the contrast is so low, there were no problems with clouding in the LM660T.
In spite of that, overall quality in 3D mode is excellent. The passive 3D glasses are very comfortable to wear and barely reduce brightness at all, which is enough to make you forget about the reduced resolution. Plus, there's none of the shimmering effect you sometimes get with active 3D glasses. Passive 3D (with alternate lines sent to the left and right eyes) is less affected by screen responsiveness than active 3D and doesn't usually have problems with crosstalk (images for the right and left eyes spilling over onto one another).
Below—the result as seen through 3D glasses (Top: LG 47LM660T / Bottom: Philips 40PFL8606H):
Audio isn't a strong point for the LM660T. The model we tested had some build issues in the chassis, so each time there was an onscreen explosion or another loud noise, the plastics vibrated. As you can imagine, that gets quite annoying when you're watching an action movie. Plus, the only frequency band that's well rendered is the part of the spectrum that covers human voices. That's fine for watching TV shows, but for films you'll be much better off with a sound bar or home cinema speakers—even the cheapest options.