LG MRGB88 55" Mini RGB AI 4K HDR Smart TV 2026 - 55MRGB88B6B

LG MRGB88 55" Mini RGB AI 4K HDR Smart TV 2026 - 55MRGB88B6B

Item No. 10301924

Found it cheaper? We’ll match it.
We’ll price match against any other UK retailer, online or in-store.

Exclusions (eg. ink) and conditions apply. Claim within 7 days.

How to request a price match

Ok

Q2_Aug_Epic_Deals_02092026_07092026_MUSTEND INFYCE_WK16_TRADEIN_150 INFY_BNPL9_WK13_1
Mini RGB evo for exceptional colour coverage
Intelligent α8 AI processor with AI Super Upscaling
Refresh rate: 120 Hz (up to 144 Hz)
HDMI 2.1 x 3
LG’s webOS gives you easy access to all your must-have apps
HDR: Dolby Vision / HDR10 / Hybrid Log-Gamma (HLG)
Dolby Vision Atmos Freesat icon
Mini RGB evo for exceptional colour coverage
Intelligent α8 AI processor with AI Super Upscaling
Refresh rate: 120 Hz (up to 144 Hz)
HDMI 2.1 x 3
LG’s webOS gives you easy access to all your must-have apps
HDR: Dolby Vision / HDR10 / Hybrid Log-Gamma (HLG)
Dolby Vision Atmos Freesat icon
Product code: 761399

The LG MRGB88 55" TV brings cinema-grade colour straight into your living room. Mini RGB evo technology uses ultra-small LEDs to reproduce 100% of the colours used by Hollywood, making everything look rich and lifelike. The α8 AI Processor works quietly in the background, boosting what you see and hear in real time. AI Super Upscaling sharpens lower quality content, while audio feels fuller and more cinematic. Plus, Precision Dimming uses multiple dimming zones to control light more accurately. Bright scenes stay vivid, while darker moments keep their detail.

Good to know

- webOS gives you quick access to all the major streaming apps
- The AI Magic Remote lets you point, click and use voice control to search
- Filmmaker Mode turns off any picture processing that can make movies look unnatural
- Dolby Vision HDR boosts brightness and contrast for more detail in every scene
- Dolby Atmos adds 3D-style sound that makes action scenes and soundtracks feel bigger
- Game Optimiser fine tunes your settings, so your games look and sound their best
- With refresh rates up to 288 Hz at Full HD, gameplay feels ultra-smooth and responsive
- FreeSync, VRR and HGiG gaming technology help deliver tear-free visuals
- WOW Orchestra seamlessly pairs your TV with a compatible soundbar
- Its slim design looks great on the stand or mounted on the wall (mount sold separately)
____________
Please note: Some apps & services (including tuner) are only available in the UK. Apps & services may be removed or no longer supported by third party content providers at any time. Some apps & services may not be available at launch and may require a firmware update before becoming available. Some services require an account and/or subscription fee.

Technical specifications for LG MRGB88 55" Mini RGB AI 4K HDR Smart TV 2026 - 55MRGB88B6B

ENERGY CONSUMPTION

Energy efficiency class (SDR)
E
On mode power demand (SDR)
64 W
Energy efficiency class (HDR)
G
On mode power demand (HDR)
120 W
Standby mode power demand
0.5 W

AUDIO

Audio power
20 W
Sound technology
- α8 AI Sound Pro (Virtual 11.1.2 Up-mix)
- AI Object Remastering Pro
- Adaptive Acoustic Tuning
- WOW Orchestra
- Precision Sound Master Pro
Speakers
2
Sound processing
Dolby Atmos

CONNECTIVITY

Audio output
Optical x 1
Connections
- HDMI 2.1 x 4
- USB 2.0 x 2
WiFi
Yes
Ethernet
Yes
Bluetooth
Bluetooth 5.3

SCREEN

Screen technology
Mini RGB
Resolution
4K Ultra HD 3840 x 2160p
Screen size
55"
HDR
- Dolby Vision
- HDR10
- Hybrid Log Gamma (HLG)
- Cinema HDR
Motion rate
120 Hz
Picture enhancement
- AI Picture Pro
- α8 AI Super Upscaling 4K
- Dynamic Tone Mapping Pro
- AI HDR Remastering
- Precision HDR Master Pro
- 4K Expression Enhancer
Processor
α8 AI Processor 4K Gen3
Refresh rate
120 Hz (up to 144 Hz)
Gaming technology
- Dolby Vision for Gaming (4K 120Hz)
- AMD FreeSync
- Game Optimiser
- HDR game mode
- VRR (Up to 144Hz)
- ALLM
- HGiG mode
- Motion Booster 288
- Cloud: Xbox Cloud Gaming, Geforce Now, Amazon Luna, Blacknut
Other features
Picture modes: Personalized Picture, Vivid, Standard, Eco, Cinema Home, Game, Filmmaker, Expert (Bright Room, daytime), Expert (Dark Room, night)

TUNER

Electronic programme guide
8-day EPG
TV tuner
- DVB-T2
- Freesat HD (DVB-S2)

Please note: Some services are only available in the UK

FEATURES

Table-top stand
Essence square stand (1-pole)
VESA mount
300 x 300
Other features
- Sleep timer
- Parental lock
- Ambient brightness sensor
PVR function
Yes
Accessibility features
- Audio description
- Colour / contract modes
- Screen / text magnification
- Screen reader / TalkBack
- Subtitles / closed captions
- Listen simultaneously with a hearing aid
Security features
Security updates

SMART

Smart TV services
- Catch up TV: BBC iPlayer, ITVX, Channel 4, 5
- Streaming: Apple TV, Amazon Prime Video, Disney+, Netflix, NOW, Paramount+, YouTube
- Music: Apple Music, Amazon Music, Deezer, Spotify
- App store

Please note: Some services are only available in the UK
Screen mirroring
- Google Cast (Android / iOS)
- Airplay 2 (iOS)
Smartphone app
LG ThinQ app
Other smart features
Works with Hey Google, Apple Home, Matter (WiFi)
Smart platform
webOS 26
Voice controlled assistant
Yes

GENERAL

Colour
- TV: Ashed blue
- Stand: Essence silver
Guarantee
1 year
Weight
- TV with stand: 18.9 kg
- TV without stand: 15.1 kg
- Boxed weight: 23.8 kg
Dimensions
- TV with stand: 786/746 x 1236 x 260 mm (H x W x D)
- TV: 716 x 1236 x 29.7 mm (H x W x D)
- Boxed: 810 x 1360 x 187 mm (H x W x D)
Box contents
- LG 55MRGB88B6B 55" Smart 4K Ultra HD HDR Mini RGB TV
- Magic remote control
- Batteries
- Stand
- Screws
- User manual
Material
- TV: Plastic
- Stand: Metal

Delivering your online order

Standard Delivery
Get it in 4 working days
Anytime delivery from 7am - 8pm
From £20
Choose a 4-hour time slot delivery
From £35
Next day delivery
Only valid on weekdays & Sunday
Anytime delivery from 7am - 8pm
From £30
Choose a 4-hour time slot delivery
From £45

Tracking your delivery

Make sure to add your mobile number when you place your order, so we can text you with delivery updates. Our Track It service also allows you to see where your order is at.

Delivery restrictions

Weekend and next-day delivery is available in most areas, but not all.
And, of course, delivery is always dependent upon stock availability.
You can use the availaility checker to quickly find out about stock availability and delivery information.

Delivering large items

If you're getting a large item delivered to a room or flat above the first floor of your home or block, our team will only be able to decide if they can safely deliver it when they arrive.
You can let us know at the checkout for any limitations (e.g. no lift, nearest parking) you may have.

Our FREE order & collect service

You can order your item(s) online, and safely collect them from your chosen store within an hour of placing your order.
Pop in store to collect your items within an hour of ordering them, free of charge (depending on stock availability). You can also choose your collection day. You’re welcome!
Once you’ve selected “collect in store” at the online checkout, we’ll email you your confirmation & collection details. When you do come to collect your item(s) make sure you bring this confirmation email, and the last four digits of your payment/gift card or voucher.

Returns and refunds

If you purchased online and you have changed your mind you can return your items within 30 days even if you have opened it for inspection. It must be returned as new and where possible, in its original packaging.

If your item develops a fault we will offer either a repair, exchange or refund if the fault occurs within 30 days of purchase (or delivery or installation). If the fault with your product occurs within its guarantee period (normally 12 months from delivery) we will offer you a prompt repair service. In all cases we reserve the right to inspect the product and verify the fault.

More info on returns and refunds.
Saved items limit reached (20/20)
To save this item, try removing something else from your Saved items.
Clear all