The main difference between the LG 42LH40 and the LG 42LD550 is that the latter is better known for its interconnectivity with other electronic media and broadband internet connectivity.
LG 42LH40 42-Inch 1080p 120Hz LCD HDTV, Gloss Black
- LCD HDTV features an elegant & distinctive design with swivel stand
- 1080p Full HD resolution 1920 x 1080p Trumotion 120Hz panel for clear smooth images even for fast action scenes with 4x HDMI v 1.3 digital inputs
- Intelligent Sensor Mode LG’s Smart Energy Saving Technology, Energy Star 3.0 compliant
- Invisible speaker system with Dolby Digital 5.1 & Clear voice for richer more balanced sound & a polished look
- 70,000:1 Dynamic contrast ratio
42″ LCD HDTV, 1920 x 1080 Resolution, 120 Hz, 70,000:1 Contrast Ratio, ATSC/NTSC/Clear QAM – 1 Tuner, SRS TruSurround XT, 4 HDMI input
Rating: 
(out of 81 reviews)
List Price: $ 1,099.95
Price: Too low to display
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Review by A. Gallia for LG 42LH40 42-Inch 1080p 120Hz LCD HDTV, Gloss Black
Rating:
Bought this TV for $999.99 from my local yellow-tag retailer. I’ve had the tv for almost 3 weeks now and over-all, I am happy.
Pros:
1. The menu system looks nice and is very easy. No confusion even for the most tech ignorant user.
2. Energy saver feature is nice, maybe a little gimicky but nice.
3. Very light weight and easy to install.
4. 4 HDMI inputs are great.
5. Physical appearance in-home is very nice.
6. HD picture is amazing unless very fast motion is involved (see below).
Cons
1. Standard definition picture can be poor. This was almost always remedied by putting the picture on “Game” mode.
2. Fast motion does result in blurring. It’s not all the time and usually only lasts a split-second but it can be VERY noticeable. This is not my first HD TV but is my fist LCD. I expected much less blurring for 120HZ but to be honest, don’t know how much blurring could be considered normal for an LCD. So far I have only experienced the blurring with TV and movies both through the cable box and my AppleTV. My Xbox 360 seemed fine but I have only tried 2 games, neither of which were sports games. I have not yet tested PS3 or BluRay.
This next thing could be considered good or bad. For me, it is a plus.
The TV uses “TrueMotion” which will drastically change the way movies and shows appear. If you look-up judding or anti-judding on google you’ll find out exactly what this means. In short, you’ll notice camera pans and movements that you would’ve never noticed before. I actually like it and feel like it makes the picture more realistic however, it can change the way a director intended for a scene to be shown. Also, I know some people that really hate anti-judding. As I said earlier, I like it. I’m not sure if this can be avoided if you don’t use any of the 3 picture modes but plan to test that soon.
This was kind of an inpulse purchase. I was planning to buy a 42″ LCD that matched most of these specs. However, I walked into the store just to see what they had and do some research or see what they had as an open-box deal. This TV’s picture stood out among the others and looked better than many TV that were more expensive and would be considered nicer. Obviously, the LED TVs blew this away but that’s a given. I’m pretty happy but I do have a little buyers remorse due to the blurring. However, for your average joe that’s just gonna throw this up on a wall, that may not be a concern. As a long-time Samsung fan, a small part of me wishes that I just held out and picked one of those.
I think the price-point makes this an over-all good purchase. That’s essentially what drove me to make the impulse buy in the first place. I do have to admit though, I feel like the old saying, “you get what you pay for” applies with this TV….and that isnt such a bad thing.
Review by Online Shopper for LG 42LH40 42-Inch 1080p 120Hz LCD HDTV, Gloss Black
Rating:
This LG product is a snap to set up; no configuration necessary. Once set up, you can adjust everything and anything with their super simple menus. The picture is perfect, especially with Blue Ray application. The up conversion from DVDs – to – regular TV reception is also extremely good. The sound is great (for TV speakers) – much better than my old Sony. This is also a new product from LG, so I was a bit hesitant to purchase without seeing any reviews. We were orginally going to buy a Samsung – but with all the benefits compared, this was a great buy! I would recommend the LG 42LH40 to anyone! Everyone who has seen this TV has complimented on its style and great picture!
Review by Joshua Hattersley for LG 42LH40 42-Inch 1080p 120Hz LCD HDTV, Gloss Black
Rating:
This is a spectacular TV.
As my first HDTV purchase, I did a lot of research going in. Plasmas are a bit cheaper, but due to concerns about burn-in (as I’m using the set with a Home Theater PC, which has a number of static elements that are often on-screen) I decided I wanted to go with an LCD panel. Then came the questions of brand, size, and features. LG is very well-reviewed, looked great in the store, and has a better reputation than, say, Phillips or Vizio. (This is not to say all the panels from the latter manufacturers seemed poor, but they definitely appear to use cheaper components.) 42″ is a great middle-high size point, not so huge that it won’t fit in a smallish apartment like mine, yet big enough to really feel sizable. And, as for features, this really has most of the bells and whistles one could ever want, including 120Hz playback for Blu-ray content.
The TV has a nice smattering of inputs–I have it hooked up via HDMI to my HTPC–and looks great. It has a very subdued aesthetic, with a glossy bezel (that, yes, will attract fingerprints, but wipes off easily with the included cleaning cloth) and a fairly unobtrusive idle/power light. The on-screen display is very well thought out and easy to navigate, with coherent groupings of the various settings, and quick access to some of the more commonly accessed on a special “Quick Menu”. The built-in sound is good for a TV, but they’re still built-in speakers, so don’t expect anything mind-blowing here (or on any TV, really).
And, lastly, it looks great. It has a wonderful built-in calibration program that really has resulted in a very balanced picture. It also has good energy saving and brightness features, easily accessible via a dedicated button the remote, so you can drop down the brightness to 25 or 50% if it’s too bright. It also has an auto-sensing feature for brightness (much like the feature seen on Apple laptop displays), though I found I tend to prefer it a little brighter than the auto-sensing feature would dictate.
All in all, an easy five stars. Highly recommended, especially given the 120Hz proofs you for the future. And, as an aside, don’t waste money on a 240Hz TV. You’ve already got 5:5 pulldown with Blu-ray (24p, which divides into 120Hz evenly but not into the usual 60Hz). It took a while for me to be sold on 120Hz as a worthwhile factor in making my purchasing decision, but 240Hz really is more of a marketing ploy than anything.
Review by Todd Mulvey for LG 42LH40 42-Inch 1080p 120Hz LCD HDTV, Gloss Black
Rating:
This tv has a great picture with good colors,very sharp,and a nice hd and blueray picture. The overall picture quality(because of the sharpness and color) is even better than my more expensive samsung ln-46b630.
I had some issues with the lg though. The audio through my hdmi from the direct tv reciever would not match the video(lips moved then sound)On my blueray the audio was fine? secondly there is a slight light leakage out the back of the tv. It lights up the wall when the room is dark? The truemotion setting must be turned off, If turned on you will see motion blur when watching dvds.(same with my samsung) 120hz effects are a problem for me. Also the contrast is good but not great. Overall the price and sharp bright picture make this tv a good choice. The samsung i exchanged for, the audio matches the video.no light leakage out the back, great contrast, colors and sharpness are not as good as the lg. But overall i like the samsung better, more $$$$ though.
Review by DeAd MiKe for LG 42LH40 42-Inch 1080p 120Hz LCD HDTV, Gloss Black
Rating:
As an owner of a previous LCD and a Plasma, I have to say, this HDTV completely blows the others away in all aspects. The speaker system is pretty amazing (most things can be watched in the 20’s volume range – this set goes up to 100!), and it’s virtual surround sound isn’t bad at all (when watching movies, I put the sound on Cinema mode, with the treble and bass turned all the way up). The auto-volume is also a nice feature. No more crazy-loud commercials! This feature fixes that issue by normalizing the commercials to a lower volume.
I want to draw special attention to the 120hz function of the TV, which is buried in the expert settings of the video options. LG advertises this feature as ‘TruMotion 120hz’, but the option in the menu simply states “120hz.” This can cause some confusion for some people. Let me explain what is going on. This TV will refresh at 120hz, no matter what – which is exactly what you want it to do. The 120hz option in the menu that I am referring to has nothing to do with that – is not really turning 120hz on or off. The name of the option is misleading. It really should be called “TruMotion” (as LG calls it, rather than just “120hz” – which implies that you are changing the refresh rate. Samsung refers to the feature as “Auto Motion Plus.”) To make a long story short, this feature has to do with frame interpolation, not refresh rate. You will find that this setting should be OFF for films (unless you want the frame rate to look “weird” and more like video instead of film) and either on LOW or HIGH (depending on your preference) for sports and video games – basically, you want the feature on for things that are shot at 60 frames per second, and off for films, which are shot at 24 frames per second. There are some times when the 120h setting can be tolerated on LOW for films, but after a while, you will just find yourself thinking that it looks a little too “weird,” and too realistic – NOT film-like. Keep the RealCinema option on (which makes 24-frame film look better). The TV will know if something is 24fps or 60fps, and will adjust accordingly. So, don’t think that you have to turn that feature off when you’re watching sports. You don’t. Just keep it on and the TV will know when it needs to use it.
This TV only needed some MINOR calibration to make the brightness/colors what they should be. I had to heavily calibrate my other HDTVs, but this one only needed a little calibration to have perfectly accurate colors. It has 4 HDMI ports (more than I would ever need!), an optical audio port, and some analog ports (which I won’t ever need to use, considering it has 4 HDMI ports!). I can’t wait to purchase a Blu-Ray home theater system to compliment this new TV, but LG has decided that Europe and Korea are the only places that deserve their RESPECTABLE Blu-Ray home theater in a box systems. The two they released here in the US do not play DivX or MKV files via a USB stick (the standalone LG BD390 does, but I want the feature to be included in a home theater system, like they have released overseas). Hopefully LG will release the good systems in their 2010 lineup.
Now, back to the TV. I really don’t have too much else to say, because everything else is pretty perfect. The menus are easy to navigate, switching inputs is easy, and there is a “quick menu” button on the remote that makes it easy to switch between video and audio modes without having the giant menu on the screen while you do it. I want to stress how happy I am with the speakers, once more. While I need to have surround sound when I get my inevitable Blu-Ray player, I have no problem with the built-in speakers. They are easily the best built-in speakers I’ve ever had the pleasure of listening to. Did I mention that there is also an option that makes the human voice higher than the background noise (for those films with poor audio, or those people watching that don’t care much for bass and just want to hear the dialog). This feature disables the virtual surround sound (which I believe was also disabled by default, so make sure you go and turn that on if you want to really enjoy the speakers) because it lowers everything that is not on the same frequency of the human voice. I was skeptical at first, but it really works, and it works well. But, since my hearing is good, I don’t need to use this feature yet, so I will stick to the built in virtual surround sound system that the TV comes with (which, on cinema mode with the bass and treble turned up all the way sounds really amazing).
In closing, amazing LCD HDTV. I highly recommend this item.