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LG INFINIA 50PK750 50-Inch 1080p Plasma HDTV with Internet Applications

by LG
3.0 out of 5 stars 71 customer reviews

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  • INFINIA Series
  • THX Certified Display
  • NetCast Entertainment Access (Wi-Fi Ready)
  • Wireless 1080p Ready
  • 600Hz Max Sub Field Driving
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Technical Details

  • Brand Name: LG
  • Model Number: 50PK750
  • Display Technology: Plasma
  • Display Size: 50 inches
  • Speaker Count: 2
See more technical details

Product Description

Product Description

The INFINIA PK750 has taken expectations about plasma and redefined them. A slimmer profile. A seamless design that's Wireless 1080p Ready. NetCast Entertainment Access, THX Certification and a vast array of other innovations. Simply, a TV that will blow you away.

Setting a new standard in picture quality, the 50-inch LG INFINIA 50PK750 1080p Plasma HDTV features THX Display Certification, 600Hz Sub-Field Driving, a protective Skin Glass, Dual XD Engine, and a TruBlack Filter to provide superior picture quality in a bright room. It also comes with LG's NetCast, enabling you to access to TV shows, movies and more, streamed directly from the Internet to your television screen.

The 600Hz Sub-Field Driving improves moving picture response time using a 10 sub-field per frame driving process for a clearer picture. The Protective Skin Glass system reduces the gap between the outer glass and filter by 70 percent, virtually eliminating double imaging and helping to reduce glare. And LG's exclusive Dual XD Engine facilitates up-conversion of standard definition content to near high-definition quality, so you can enjoy improved image quality with everything you watch.

Passing more than 30 rigorous tests, this LG INFINIA Plasma TV achieved picture quality worthy of THX Display Certification--the industry standard for having the correct gamma, luminance, and color temperature. This certification demonstrates that this HDTV can recreate the cinema experience at home, making the picture resemble movie theatre quality.

Other features include an incredible 3,000,000:1 dynamic contrast ratio for more stunning colors and deeper blacks, two USB ports for connecting external drives for playing back MP3 audio, JPEG photo and DivX HD video files, stereo speakers with 20 watts of power and Dolby Digital decoding, and four HDMI inputs.

NetCast Entertainment Access

NetCast Entertainment Access brings the best Internet services direct to your TV--no computer required. Instantly access movies and TV shows, news and weather and the world's largest library of HD movies in 1080p. (Note: Internet connection & subscriptions required and sold separately.)

Get your HD film fix
If you like movies and want major studio releases in Full HD 1080p and Dolby Digital Plus sound, you'll love Vudu, the on-demand movie service with more hi-def titles than anyone else. Over 3,000 and counting. Plus, there's no subscription. So you only pay for what you watch.

Access your queue from the couch
Make the most of the extensive offerings on Netflix. Now you can watch your favorite movies and shows--from new releases to classics to everything in between--without your PC. Sit back and enjoy unlimited instant access to thousands of movies and TV episodes streamed directly to your TV set.

It's YouTube on your tube
No more crowding around your PC to watch web videos. NetCast instantly streams videos and TV shows from YouTube for unlimited, direct access to the millions of Web videos whenever you want them. All you need is an active Internet connection. Watch that one fellow making a fool of himself over and over again.

Stay up to speed
Sometimes you want to see what's going on in the world, but without changing the channel. Yahoo! TV Widgets delivers everything you need including news, scores, stocks and even photos from Flickr.

Your pictures on the big screen
Re-live all your family vacation memories with your Picasa photos on the big screen for everyone to enjoy, create galleries and slideshows for easy organization.

Key Features

Full HD 1080p resolution
This stunning picture is the reason you wanted HDTV in the first place. With almost double the pixel resolution, Full HD 1080p gives it superior picture quality over standard HDTV. You'll see details and colors like never before.

600Hz Sub Field Driving
Tired of streaky action or unclear plays during the game? See sports, fast action and video games like never before. The 600Hz refresh rate virtually eliminates motion blur.

3,000,000:1 Dynamic Contrast Ratio
No more worrying about dark scenes or dull colors. The dynamic contrast ratio of 3,000,000:1 delivers more stunning colors and deeper blacks than you can imagine.

Intelligent Sensor
Don't strain your eyes. Let your TV do the adjustments for you. Intelligent Sensor automatically optimizes the picture to the lighting and color conditions in the room for a more enjoyable viewing experience.

AV Mode
Sports, movies and video games are best enjoyed with customized settings. With AV Mode, you can easily select from one of three picture modes for "Cinema", Sports" or "Games" to enjoy an optimized picture and sound experience.

Picture Wizard
Get easy self-calibration with on-screen reference points for key picture quality elements such as black level, color, tint, sharpness and backlight levels. Take the guesswork out of picture adjustments with this simple-to-use feature. It's not actually magic, but it will sure seem that way.

Wireless 1080p Ready
The best place for your TV isn't always near the cable. Wireless 1080p Connectivity lets you cut loose from messy wires, hang your TV where you want and still get a stunning Full HD picture. All those cords and cables are completely out of sight. And the only thing attached to your TV is you. (Note: Wireless media kit required and sold separately.)
Dual XD Engines for Superior video
This Plasma HDTV combines two of LG's exclusive XD Engines to maximize picture quality for any type of video content. By combining XD Engine processors, panel performance is optimized ensuring higher color accuracy and more realistic images..
24P Real Cinema
Stay in for the theater. Enjoy a true cinema-like experience in your own home with movies the way they are meant to be seen. LG's Real Cinema technology precisely displays 24p source frames on your screen, the same as on a movie screen. If you love movies, you'll love Real Cinema.
Clear Voice II
Get audio the way it was meant to be heard. Clear Voice II enhances and amplifies the frequency range of the human voice to help keep dialogue audible when background noise swells.

Infinite Sound
What's a great picture without great sounds to match? Infinite Sound delivers an amazing listening experience with deep, rich bass to make the most of your entertainment.

Dolby Digital
Dolby Digital lets you experience compelling 5.1-channel surround sound. And you can trust that you'll get the same great Dolby Digital audio quality no matter what you're watching--a DVD or Blu-Ray Disc, TV programming or downloaded content. Best of all, you can be confident that you'll hear the audio exactly as it was intended, because Dolby Digital is also used to create the soundtracks for movies and games.
USB 2.0
Now reliving that fantastic family vacation can happen in the comfort of your living room. Easily connect your external USB devices to enjoy JPEG photos or listen to MP3 files. This HDTV is also compatible with playing back DivX HD video files from a USB drive.
HDMI V.1.3 with Deep Color
Make installation of any enabled device a snap. Get 10.2Gbps of bandwidth for deeper colors and more to take advantage of the best Full HD experience. HDMI V.1.3 connectivity lets you prepare yourself for tomorrow's technology today.
Having a hard time keeping track of your remotes? With SimpLink, all your LG devices can be controlled with just one remote.
Smart Energy Saving
With LG's Smart Energy Saving Features, you can conserve money and energy.

Key Specifications

  • Screen size: 50-inch class (50 inches diagonal)
  • Resolution: 1920 x 1080 (1080p Full HD)
  • Dynamic contrast ratio: 3,000,000:1
  • Brightness: 1500 cd/m2 (candela per square meter)
  • 600Hz Sub Field Driving: Yes
  • Built-in tuner: ATSC/NTSC/Clear QAM
  • Audio output: 20 watts (10W x 2)
  • Speaker system: 2-way, 4 speakers
  • Dolby Digital decoder: Yes
  • Surround system: Infinite Sound
  • Input labeling: Yes
  • Swivel stand: ±20 degrees
  • VESA compliance: 400mm x 400mm
  • Warranty: 1 year parts and labor; 2 years on the panel


  • HDMI (version 1.3, HDCP): 3 rear, 1 side
  • Component: 2 rear
  • Composite A/V: 1 rear, 1 side
  • RF: 1 rear
  • PC input (15-pin, D-Sub): 1 rear
  • PC audio input: 1 rear
  • Digital audio output: 1 optical, rear
  • USB: 2 side
  • Ethernet LAN: 1 rear
  • RS-232c input: 1 rear


  • TV without stand: 46.6 x 29.1 x 2.1 inches (WxHxD); 65.9 pounds
  • TV with stand: 46.6 x 31.5 x 12.2 inches (WxHxD); 71.2 pounds
  • What size TV should you get?

LG 2010 HDTV Comparison

Series: LD350 LD450 LD520 LD550 LD650 LE5300 LE5400 LE8500 LX6500 PJ350 PK550 PK750
Models: 22-inch
Panel type LCD LCD LCD LCD LCD LED LCD LED LCD LED LCD 3D LED Plasma Plasma Plasma
LED Local Dimming -- -- -- -- -- -- -- -- -- --
3D Ready -- -- -- -- -- -- -- -- -- -- --
Resolution 720p 1080p 1080p 1080p 1080p 1080p 1080p 1080p 1080p 720p 1080p 1080p
Contrast ratio 50k:1
Refresh rate 60Hz 60Hz 120Hz 120Hz 240Hz 60Hz 120Hz 120Hz 240Hz 600Hz 600Hz 600Hz
Response time 5ms 4ms 2.4 2.4 2 2.4ms 2.6ms 1ms 2ms -- -- --
Netcast Entertainment -- -- -- -- -- --
HDMI input 2 2 3 4 4 4 4 4 4 3 3 4
Component input
(Y, PB, PR)
1 1 1 2 2 2 3 3 3 2 2 2
Composite input 1 2 2 2 2 2 2 2 2 2 2 2
PC input
USB port 1 1 1 2 2 1 2 2 2 1 1 2
MP3 and JPEG
DivX video
-- -- -- -- --
Ethernet -- -- -- -- -- --
Wireless 1080p Ready -- -- -- -- -- --
Energy Star -- -- -- -- -- -- -- --
Series: LD350 LCD LD450 LCD LD520 LCD LD550 LCD LD650 LCD LE5300 LED LE5400 LED LE8500 LED LX6500
PJ350 Plasma PK550 Plasma PK750 Plasma

Learn More

Which Size HDTV is Right for My Room?

HDTV Size chart
With standard-definition TVs, the rule used to be that viewers would feel comfortable watching a set from a distance of 3 to 6 times the screen size in inches. With HDTV, the resolution is so much better that you can sit closer to a larger TV without noticing the pixels. So with HDTVs, the rule tends to be you can sit anywhere from 1.5 to 3 times the screen size (in inches) for the best experience.

If you know the size of the room you have already, where you want to sit, and where your new HDTV should go once you get it, you can figure out the size HDTV you should get.

  • Minimum size = Viewing distance/3
  • Maximum size=Viewing distance/1.5

Product Information

Product Dimensions 2.1 x 46.6 x 29.1 inches
Item Weight 65.9 pounds
Shipping Weight 83.2 pounds
Domestic Shipping This item can only be shipped to the 48 contiguous states. We regret it cannot be shipped to APO/FPO, Hawaii, Alaska, or Puerto Rico.
International Shipping This item is not eligible for international shipping. Learn More
Item model number 50PK750
Customer Reviews
3.0 out of 5 stars 71 customer reviews

3.0 out of 5 stars
Best Sellers Rank #173,149 in Electronics (See Top 100 in Electronics)
#125 in Electronics > Televisions & Video > Televisions > Plasma TVs
Date first available at February 24, 2010

Warranty & Support

Product Warranty: For warranty information about this product, please click here


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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

This is one of the Best TVs available on the market, especially considering it's price. I've had this TV for about a week now and have nothing major to complain. I was nervous getting a plasma TV due issues like glare, buzz, weight, form factor, ghosting, burn-in etc. But this TV proved to out live most of the disadvantages of plasmas.


1. Color Accuracy - Color accuracy great without even tweaking any calibration settings. I like the THX cinema mode the best.

2. Slick - The TV has a slim form factor and the uniform glass top (Bezel does not pop out of the screen). We absolutely love it's looks.

3. DLNA - This is the first TV I owned with DLNA capability. I installed the Nero Home media essentials that came with this TV, on my laptop and I was able to watch photos and videos that are on my laptop, in no time. The video quality also feels upscaled and close to HD.

4. Plug and Play USB - I connected my USB hard drive and instantly there is a prompt on the TV to play videos, music and photos.

5. Netcast and Widgets - The TV comes with Netflix, Youtube, Vudu, Picasa widgets and it also supports the Yahoo widget gallery. I haven't yet tried Netflix or Vudu. But Youtube and Picasa were really good. The picture quality of the youtube videos was not great, but it really is a matter of the video itself, but not the TV. Yahoo widgets were good too. I especially use the Twitter widget a lot.

6. Games - The TV came with some games pre-installed. I haven't explored this feature much. But I tried Sudoku and it was simple to use.

7. No Buzz - Since I read in one of the earlier reviews about the buzz sound, I tried hard to hear it from my typical viewing distance (about 10ft) and I heard nothing.

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Verified Purchase
I really like this tv. I researched tv's for a while before purchasing. It was between the Panasonic G25 and the LG PK750. Although the picture was an important factor the looks of the tv weighted in heavily as well.

The Pani G25 is an extraordinary tv, but it comes at a premium and it looks are a bit dated in comparison with the beautiful Infinia PK750.

I purchased the tv three months ago from Amazon. Excellent experience all around, even with the free shipping received. I did the prerequisited 100 hrs break in process, running only full screen programing for hours at a time. The BBC Life blu ray is excellent for this, as is has a 3hrs plus disc. The tv looks better now than when I purchased back in April. the colors pop and it renders a very good black, not as good as the PK950 model, but good.

1. Beautiful tv, it resists dust
2. Options - THX and various watching and color adjustments - Tweek them to obtain best
3. Internet able - Netcast, Netflix, etc.
4. Price
5. Multiple connections - 4 HDMI
6. Thin and very light


1. Screen glare from certain watching angles
2. Image retention for the first 200 or so hrs, this is different than burn in. It will go away, but it is a little annoying nonetheless.
3. Sound - speakers under perform - I have mine connected to an Onkyo receiver.

Overall I give this tv 4.5 stars.
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Great TV, with ever so slight a buzzing noise that is the function of the picture brightness.

I can only hear it when everything is absolutely quiet and I am fast forwarding the remote DVR. It sounds like a transformer or capacitor noise. I cannot hear it over the TV's volume - only when the TV is on mute and it is displaying a very bright image (I sit 8' away).

The LG Certified Tech verified everything and said that he believes that it is due to the 2010 panels being much thinner - less material to absorb and dampen out the vibrations (once a Mechanical Engineer, always a Mechanical Engineer).

The long story: Bought it a couple of weeks ago from another vendor. It arrived late Sunday night, so I did not have time to really enjoy it until the following weekend, by which time I had also completed the 100 hour Plasma TV burn in.
I gave my wife the option of this TV, the equivalent and equally priced Samsung 50" (with 2 million contrast ration in place of the LG's 3), versus the Panasonic G25 for an additional $300. I took her to a store that had all 3, and she picked this for its beautiful clean lines.

I had a concern about the Panasonic TV retaining its deep black levels, so I was relieved (if it was not for that, I would have just picked the Panasonic and not mentioned the other two). I was also concerned about the Samsung's buzzing noise, which seems to afflict random sets (even in the 2010 models).

I sat to watch the TV over the following weekend. Everything was fine during the day, but at night, when the hose was perfectly quiet, I started to hear a very slight buzzing noise whenever I fast forwarded or paused the DVR'd programs - especially whenever the image was very bright.
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Verified Purchase
I got this TV two days ago, the delivery was smooth, they even placed in the the basement of my house (I tip). We unboxed the the TV and tuned on the set, I looked for damage and signed the paperwork. I have Verizon Fios, they encrypt everything but locals and government channels. But after hanging the TV on the wall, (having the screws in the back of the TV already was nice), scanning for open QAM channels and playing with the settings I found its sweet spot. I actually used the built in auto tune for this, it looks pretty damm good. The blacks improved, the local news (Philly) looked great in HD. The overall color was great, I have a media server and hooked up the Ethernet cable. I like the interface for my media, it found my twonky server and I was able to play AVIs and MKVs with little issue. I have one file that it failed to decode the audio for, it stated that when it started playing the file. I kicked on the BBC life series in 1080p and it looks good. I have another Panasonic plasma up stairs, its a few years old. The reason for one less star is that the blacks are deeper on that set. Since it's new it might change on the LG. I'm currently running a break in DVD, since this isn't my main TV the 1000 hrs should go quickly. I'll update the post after the break in period. I do have a light in the middle of the room, it showed up on the TV. The reflection was enough that I needed to turn off the light. I had a smaller LCD TV in the same spot, I didn't notice that before. Placing a table lamp downstairs should fix that. This is a plasma and it doesn't have the anti-reflective coating (50PK950 has it).

The TV widgets are cool, I hope there are more yahoo widgets to come. Twitter is available, but adding face book would be great.
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