To properly experience our LG.com website, you will need to use an alternate browser or upgrade to a newer version of internet Explorer (IE9 or greater).

The LG.com website utilizes responsive design to provide convenient experience that conforms to your devices screen size. In order to get the best possible experience our LG.COM website please follow below instructions.

If you’re using Internet Explorer 8 or earlier, you will need to use an alternate browser such as Firefox or Chrome or upgrade to a newer version of internet Explorer (IE9 or greater).

If you’re using Internet Explorer 9 and higher, turn off your Internet Explorer browser’s “Compatibility View settings” by following steps below:

  • Right click at the top of your browser and make sure the “Menu Bar” option is selected
  • Select “Tools” from the menu bar and then select “Compatibility View settings”
  • In the pop-up menu uncheck all three boxes and click “Close”
  • Your browser window will automatically refresh and you’ll be ready to go
Skip to Contents Skip to Accessibility Help

55LA7400

Key Features

  • LG Smart TV
  • LG Cinema 3D
  • Cinema Screen
  • 2.1 Speaker
  • Energy Star® Qualified

available sizes:

55" Discontinued
SUMMARY
LG SMART TV FEATURES
AUDIO
CONNECTIVITY
AV INPUTS/OUTPUTS
POWER
DIMENSIONS / WEIGHT
WARRANTY / UPC
PANEL SPECIFICATIONS
VIDEO
LG CINEMA 3D FEATURES
CABINET / ACCESSORIES

What People Are Saying

Rated 5 out of 5 by from LG 55 classic i bought 2 months ago. Best smart t.v. i have ever seen.It almost cost you anything to purchase before LG discontinued selling thr 55 inch model
Date published: 2018-11-16
Rated 5 out of 5 by from Great features I got this about three weeks ago couldn’t be more happy about LG
Date published: 2017-12-05
Rated 5 out of 5 by from Great features with 3D and sports Bought in 2014 no problems love the Sports vision and 3d
Date published: 2017-11-28
Rated 5 out of 5 by from Best non 4k TV imo Great picture but sounds cap everything else is 5* but get a 4k nowadays.
Date published: 2017-10-17
Rated 3 out of 5 by from Good for the price paid I've owned this TV for about 30 months and I am only fairly satisfied with it. While the regular HD picture is very clear and the 3D is excellent as well, the sound and internet capabilities of it have left me a very disappointed if I'm to be honest. I like a nice rich bass response when listening to music programs or soundtracks in movies, but also clarity when someone is speaking, neither of these is very good without my surround sound system on. I've tried every setting and mode that this set has for sound, and nothing is all that good without an outside sound system. If I watch a program with the surround off, I always end up turning on the closed captioning or putting on headphones so I can understand everything that is being said, and no, I do not have a hearing problem at all, the tv just does not have a good sound system in my opinion. The internet feature is also lacking in that it is very slow and not user friendly. We have high speed internet and a very strong wireless signal in our home that every computer, smartphone and tablet works flawlessly with and with great speed, the exception being this tv. If I connect a laptop to the tv and use the tv as a monitor it works fairly well, but using the built in browser and internet capabilities is like pulling teeth, slow and painful. In fact, you cannot even watch movies from services like streampix because they require updated browsers which you cannot download to this tv in any way, so you have to use another source like a laptop to do this. Had I know that this was the case I'd never have bought if to begin with. The research I did somehow never mentioned the fact that the linux system this set uses could not be updated, so you are stuck having to either not use certain available services or use a laptop or other device hooked up thru a long HDMI cable to make this happen, more trouble, cables, cluter and money. The remote is also another just OK item, and it would have been nice if the buttons would have been backlit. Bottom line, if I had the chance to give it back and buy something else I would, that being said at least the picture is nice and clear and the 3D, even though we hardly ever use it, is also very good. If you want something with a good sound and internet system, you'd better keep looking, this is not for you.....just my opinion after 30 months of use.
Date published: 2016-07-30
Rated 5 out of 5 by from Many Features I bought this TV and it has several very nice features. I also like the way it will update itself over the internet. It has great color and I use an external receiver for the sound which makes my den like a theater.
Date published: 2016-02-21
Rated 5 out of 5 by from great pictued i have had it for a few years and it has great sound picture and connects to internet so easy
Date published: 2015-11-01
Rated 3 out of 5 by from GREAT TV FOR THE PRICE! I ENJOY THE TV FOR THE SMART TV FUNCTIONS. I AM EXTREMELY UPSET THAT AMAZON PRIME WAS REMOVED FROM THE OPTIONS IT WAS ADVERTISED WITH WHEN I BOUGHT IT. ALSO NOT HAPPY WITH THE POOR SOUND QUALITY. I HAD TO HOOK UP TO SURROUND SOUND TO LISTEN AT LOUD VOLUME. THE AUTO DIM IS ANOTHER FEATURE THAT IS ANOTHER FEATURE I DISLIKE. I HAVE BLACKOUT CURTAINS AND WISH I COULD SEE A MORE COLORFUL PICTURE AS IT SHOWS WHEN THE LIGHTS ARE ON.
Date published: 2015-10-28
  • y_2018, m_11, d_18, h_3
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.9
  • cp_1, bvpage1
  • co_hasreviews, tv_7, tr_174
  • loc_en_US, sid_MD05032982, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-2.3.0.0
  • CLOUD, getReviews, 4ms
  • REVIEWS, PRODUCT

ASK & ANSWER

Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

I forgot my pin for the safety section of settings how can I reset it.

Asked by: Brentbel
Hello, to reset the password/pin, try "0000" then "1111" then "2222" and finally "3333" Only continue on until it unlocks it and then that will be the code. ^AC
Answered by: Amber C
Date published: 2018-10-22

is my L47A7400 digital ready

Asked by: viking lai
If by 'Digital Ready" you are asking if the LG 47" Class Cinema 3D 1080P 240Hz LED TV with Smart TV (46.9" diagonally), Model # 47LA7400 has a built-in digital tuner, it does.It has a built-in ATSC tuner in addition to an NTSC and QAM tuner. TVs manufactured or released in the U.S. are mandated by the FCC to include an ATSC tuner since March 01, 2007. The ATSC tuner, often called an ATSC receiver or HDTV tuner allows for reception of digital television (DTV) channels transmitted by television stations in North America or countries that use the ATSC standard...^IFV
Answered by: LGJoel
Date published: 2018-08-22

I am looking to purchase the screws to the stand. Where can I find those?

Asked by: Jose941
Hello, the screw size is M4 x 20 as per the manual on page 14. The manual can be found below and the screws can be found at most local hardware stores. ^AC http://www.lg.com/us/support-product/lg-60LA7400
Answered by: Amber C
Date published: 2018-03-05

How do I find the apps in LG TV,, and where in the settings is the screen cast-enabled app??

Asked by: Mack213
Hello Mack213, the User guide has all of the step by step instructions needed, please see the User Guide in the link provided. ^Ac http://www.lg.com/us/support-product/lg-55LA7400
Answered by: Amber C
Date published: 2018-02-26

Where can I get a power cord for my LG 60LA7400? I did not know they no longer made 3D televisions. Is it possible for me to order a replacement power cord?

Asked by: Redsinsation
Hello, the power cord can be found in the link below. ^AC https://encompass.com/item/9634439/LG/EAD62348802/Power_Cord?gclid=Cj0KCQiAnuDTBRDUARIsAL41eDphZ6S9z-dh2if3nBocGrxFEps6W55ozpzyw616PvPxgRGQiLkX214aAkmkEALw_wcB
Answered by: Amber C
Date published: 2018-02-05

The sound is silent and it's grayed out in settings. Any clue ?

Asked by: Scot119
What settings is the sound grayed out on? What source are we using on the TV? More information would be needed to offer assistance. Please contact our Customer Interactive Center at 800-243-0000 for additional support.
Answered by: NeilE
Date published: 2017-10-16

I lost the screws for my tv stand what size do o need ? 

Asked by: Mpenny
We appreciate your interest in this television. The base attaches with machine screws measuring M4x20.
Answered by: NeilE
Date published: 2017-09-25

What is the current gen TV that is compatible to the 55la7400 TV

Asked by: Timsinks
There really aren't any current TVs that are comparable to the LG 55" Class Cinema 3D 1080P 240Hz LED TV with Smart TV (54.6" diagonally), Model # 55LA7400 which was a 2013 model and TVs have changed quite a bit since then. If you are still interested in a 1080p set, currently, the Full HD 1080p Smart LED TV - 55" Class (54.6" Diag) TVs in our lineup are the 55LH5750, 55LJ550M, and the 55LJ5500, but none of these have a 240 Hz refresh rate. With the current advancements in picture quality and technology being the 4K UHD HDR Smart LED TV - 55" Class (54.6" Diag) TVs, the majority of our 55" lineup are the 55UH615A, 55UH6550, 55UJ6300, 55UH7700, 55UJ6200, 55UJ6540, 55UH6150, 55UJ7700, 55UH6090, 55UH6030, and the 55UJ6300 and then the higher tiered SUPER UHD 4K HDR Smart LED TV w/ Nano Cell™ Display - 55" Class (54.6" Diag) TV models, 55SJ8500, 55SJ8000, 55UH8500, and the 55UH7650. None of the TVs mentioned above support 3D except for the 55UH8500 (Select 2016 models were the last to support 3D, 3d is not supported on any 2017 LG TVs)...^IFV
Answered by: LGJoel
Date published: 2017-08-22
  • y_2018, m_11, d_18, h_3CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.9
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_194
  • loc_en_US, sid_MD05032982, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-2.3.0.0
  • CLOUD, getContent, 26ms
  • QUESTIONS, PRODUCT