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55" Class (54.6" diagonal) Edge-lit LED IPTV with Integrated Pro:Idiom® and b-LAN

LG 55LX774H


  • Pro:Centric® SMART
  • Integrated Pro:Idiom® DRM Technology
  • webOS & Media Share Features
  • Commercial Swivel Stand

Quick Specs

  • Type: 50 - 59 LED-LCD TV
  • Width: 48.9"
  • Height: 30.7"
  • Depth: 12.8"
  • Energy Star Rated: No
  • Screen Size: 55"
  • Max Resolution: 1080P
  • Contrast Ratio: 1200:1
  • WiFi Connected: No

See More

Pro:Centric® SMART

The LX774H is the latest in the line of Pro:Centric TVs that provide a unique and dedicated hotel applications hosting platform for LG's system integrators' interactive applications, enabling delivery for a wide range of custom applications tailored to both hotel management and guests' needs. LG Pro:Centric SMART offers extended customizable tools: HTML5, Java and Flash. Using these tools, partners can optimize the TVs by editing and developing their own enhanced service design to increase the visual impact on guests.


GLOBAL LEADING DIGITAL RIGHTS MANAGEMENT (DRM) SOLUTION Pro:Idiom unlocks access to premium content to help ensure rapid and broad deployment of HDTV and other high value digital content. Pro:Idiom has been designed specifically for users of premium HDTV content from cable, satellite, or video on demand (VOD) services, and is intended to lower costs and reduce maintenance. This leading DRM system is embraced for its security solution, prevents illegal copying of copyrighted content.

Smart Share

LG Smart Share ® allows guests to use the TV to access and view data shared either by wired DLNA Certified ® devices connected to the same LAN as the TV or by wireless LG devices using LG's Smart Share application with Wi-Fi Direct ®.

Screen Share

enables screen sharing with a Miracast ® or Wireless Display (WiDi) capable device (e.g., a laptop with Intel ® hardware).

Bluetooth Sound Sync (Bluetooth 3.0)

Bluetooth Sound Sync allows guests to listen to audio from a Bluetooth-enabled mobile device through the TV's speakers. * Support devices for Bluetooth Sound Sync : Android (above v4.4 KitKat) / iOS based Mobile Device


enables the TV to function as a 2.4 GHz wireless access point for up to five devices.


(Discovery and Launch) allows guests to play selected application media on the TV from a device with DIAL capability. The device may be used to cast any application for which a TV-compatible application has been created/selected.

Pre-loaded Apps

Guests can be served with bandwidth-worry-free pre-loaded applications, including Accuweather, Crackle, HULU, Web Browser, and YouTube (other applications may be added in the future, subject to licensing terms).


  • Pro:Centric® SMART
  • Integrated Pro:Idiom® DRM Technology
  • webOS & Media Share Features
  • Commercial Swivel Stand
Dynamic Contrast Ratio 1,000,000:1
Type Edge LED
Diagonal Size 54.6"
Resolution 1,920 x 1,080 (FHD)
Response Time (G to G) 9 m/s
Frame Rate 60 Hz
Viewing Angle Degree 178°/178°
Static Contrast Ratio 1,200:1
Analog NTSC
Digital ATSC / VSB / Clear QAM
Aspect Ratio Yes 6 modes (16:9, Original, 4:3, Vertical Zoom, All-Direction Zoom, Just Scan)
Triple XD Engine Yes
Dynamic Color Enhancer Yes
Real Cinema 24p (3:3 pull down) Yes
Sound Mode Yes 6 modes (Standard, Cinema, Clear Voice III, Sports, Music, Game)
Optical Sound Sync Yes
Audio Output / Speaker System 10W + 10W / 2.0 ch
Wireless Sound Sync Yes
Pro:Centric ® Type Pro:Centric Smart
Pro:Centric ® Application Yes
Pro:Centric ® RF 2 Tuner
Pro:Centric ® HCAP (SDK) GEM / Flash / HTML
Pro:Centric ® Hybrid Streaming (IP&RF) Yes
Management Remote Diagnostics / EZ-Manager Wizard (for Auto Configuration)
Interactivity HTNG / HDMI-CEC
Digital Rights Management Pro:Idiom
Anti-theft System Kensington Lock, Credenza/Security Screw Hole, Lock Down Plate, Commercial Grade Stand
USB Media Moving Picture Playback (MPEG), Picture (JPEG), Audio Codec (AC3, EAC3, AAC, Mpeg, MP3, PCM)
Advanced Setting Option Auto Off / Auto Sleep, Smart Energy Saving, Motion Eye Care
Smart Features Smart Share, DLNA, WiDi, Miracast, Wi-Fi Direct, DIAL, Bluetooth Sound Sync., SoftAP, Web Browser, Magic Remote (Optional), Supported Wi-Fi Standards (802.11a/b/g/n/ac)
RJP Compatibility Yes
Yes Welcome Screen (Splash Screen), FTG Mode, Instant On, IR Out, External Speaker Out, Public Display Mode, USB Cloning, Logical Channel Map, Multi-IR Code
Side HDMI In (2), USB 2.0
Rear RF In, AV In (Sharing with AV In), Component Audio In, Optical Digital Audio Out, HDMI Input, USB 2.0, PC Audio Input (Sharing with Component Audio In), LAN Port (2), RJ45, External Speaker Out, TV Link Configuration, PTC Configuration, MPI Port
Yes Power Cable (5.9 ft.), Owner's Manual / Easy Setup Guide
Bezel Width On (L/R, U, B) 15.1, 12.7, 17.8 (mm)
Bezel Width (L/R, U, B) : off bezel based 12.6, 10.2, 15.3 (mm)
W x H x D / Weight (with stand) 48.9" x 30.7" x 12.8" / 46.5lbs
W x H x D / Weight (w/o stand) 48.9" x 28.5" x 2.2" / 39.0lbs
W x H x D / Weight (Carton) 52.4" x 32.0" x 6.0" / 55.3lbs
Vesa (mm) 300 x 300
Stand ( 20/45/90°) Swivel
Voltage, Hz 100 ~ 240V, 50/60Hz
Stand-by < 0.5
Watts (Typical) 67.3
Safety UL
Etc. RoHS, UL, NOM
Environment FCC
UPC 719192919686

Quick Specs

  • Appearance

  • Type: 50 - 59 LED-LCD TV

  • Dimensions

  • Width: 48.9"
  • Height: 30.7"
  • Depth: 12.8"

  • Features

  • Energy Star Rated: No

  • Size

  • Screen Size: 55"

  • Panel

  • Max Resolution: 1080P
  • Contrast Ratio: 1200:1
  • WiFi Connected: No

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

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Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.