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

Model # 55LX774H

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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.



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

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


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


DIAL (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
Diagonal Size 54.6"
Type Edge LED
Resolution 1,920 x 1,080 (FHD)
Dynamic Contrast Ratio 1,000,000:1
Static Contrast Ratio 1,200:1
Viewing Angle Degree 178°/178°
Response Time (G to G) 9 m/s
Frame Rate 60 Hz
Analog NTSC
Digital ATSC / VSB / Clear QAM
Triple XD Engine Yes
Real Cinema 24p (3:3 pull down) Yes
Dynamic Color Enhancer Yes
Aspect Ratio Yes 6 modes (16:9, Original, 4:3, Vertical Zoom, All-Direction Zoom, Just Scan)
Audio Output / Speaker System 10W + 10W / 2.0 ch
Sound Mode Yes 6 modes (Standard, Cinema, Clear Voice III, Sports, Music, Game)
Optical Sound Sync Yes
Wireless Sound Sync Yes
Pro:Centric ® Type Pro:Centric Smart
Pro:Centric ® Hybrid Streaming (IP&RF) Yes
Pro:Centric ® Application Yes
Pro:Centric ® RF 2 Tuner
Pro:Centric ® HCAP (SDK) GEM / Flash / HTML
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)
Management Remote Diagnostics / EZ-Manager Wizard (for Auto Configuration)
Interactivity HTNG / HDMI-CEC
Digital Rights Management Pro:Idiom
RJP Compatibility Yes
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
Anti-theft System Kensington Lock, Credenza/Security Screw Hole, Lock Down Plate, Commercial Grade Stand
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 (L/R, U, B) : on bezel based 15.1, 12.7, 17.8 (mm)
Bezel Width (L/R, U, B) : off bezel based 12.6, 10.2, 15.3 (mm)
Vesa (mm) 300 x 300
WxHxD / weight (w/o stand) 48.9" x 28.5" x 2.2" / 39.0lbs
WxHxD / weight (with stand) 48.9" x 30.7" x 12.8" / 46.5lbs
WxHxD / weight (Carton) 52.4" x 32.0" x 6.0" / 55.3lbs
Stand (±20/45/90°) Swivel
Voltage Hz 100 ~ 240V, 50/60Hz
Typical (Watts) 67.3
Stand-by (Watts) < 0.5
Safety UL
Environment FCC
Etc. RoHS, UL, NOM
55LX774H 719192919686

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy, and expensive and 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.

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

Questions or Comments?
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