LG OLED65C66LB 65" C6 OLED evo AI 4K Smart TV 2026

The LG OLED65C66LB C6 brings serious flagship technology into LG’s hugely popular C-series. Its 65-inch OLED evo panel combines perfect blacks with Brightness Booster, while the new Alpha 11 AI Processor 4K Gen3 delivers sharper upscaling, intelligent picture optimisation and exceptional HDR performance. Add Dolby Vision, 165Hz VRR gaming and webOS 26, and the C6 is an outstanding all-round OLED for movies, sport and gaming.

• OLED evo with Brightness Booster – self-lit OLED pixels deliver perfect blacks, exceptional contrast and brighter, more impactful highlights.

• Alpha 11 AI Processor 4K Gen3 – LG’s advanced Dual AI Engine optimises detail, texture, colour, HDR and upscaling in real time.

• Serious 4K gaming performance – 120Hz native refresh with VRR up to 165Hz, NVIDIA G-SYNC, AMD FreeSync Premium, ALLM and sub-0.1ms response time.

• Dolby Vision cinema experience – Dolby Vision, HDR10, HLG and Ambient FILMMAKER MODE help movies and streaming content look natural and cinematic.

• webOS 26 with smarter connectivity – Apple AirPlay, Google Cast, LG ThinQ, AI Hub and the AI Magic Remote bring your entertainment together.

• Dolby Atmos sound built in – 40W 2.2-channel audio with Alpha 11 AI Sound Pro, virtual 11.1.2 up-mixing and WOW Orchestra support.

The C-series has traditionally been the LG OLED we recommend most often because it delivers most of the picture quality people actually want without pushing into flagship G-series pricing. The C6 strengthens that argument considerably, particularly with LG moving it onto the Alpha 11 Gen3 processor.

For films, sport and everyday television it is a superb 65-inch OLED, but gamers arguably get the biggest upgrade. Four HDMI inputs, 4K 120Hz support and VRR up to 165Hz make this one of the most capable big-screen gaming TVs in its class. Unless you specifically need the extra brightness or installation style of LG’s G-series, the C6 is likely to be the smarter buy for most premium OLED customers.

OLED evo Picture Quality

Unlike conventional LED televisions, the OLED65C66LB does not rely on a backlight. Each of its pixels produces its own light and can switch completely off when displaying black, creating the exceptionally deep black levels and precise contrast OLED is known for.

LG’s OLED evo technology is partnered with Brightness Booster on the C6. The Alpha 11 processor analyses individual scenes and uses its Light Boosting Algorithm to increase highlight brightness and reveal additional detail, helping HDR content retain impact even in brighter living rooms.

Perfect Black and Perfect Colour technology further builds on OLED’s natural strengths, making the C6 particularly impressive with darker films, high-contrast HDR scenes and content where subtle colour gradation matters.

Alpha 11 AI Processor 4K Gen3

One of the most significant upgrades to the 2026 C-series is LG’s Alpha 11 AI Processor 4K Gen3 with Dual AI Engine.

Rather than simply sharpening an image, the processor analyses picture information including objects, textures and scene characteristics to improve clarity while maintaining a more natural appearance. Alpha 11 AI Super Upscaling 4K also helps improve lower-resolution television and streaming content when displayed across the large 65-inch 4K panel.

AI HDR Remastering, Dynamic Tone Mapping Ultra and AI Picture Pro work alongside the processor to extract more detail and contrast from both HDR and SDR sources.

Made For Movies

The C6 supports Dolby Vision, HDR10 and HLG alongside FILMMAKER MODE.

Ambient FILMMAKER MODE can compensate for the lighting conditions in your room while retaining the creative intent of the original content, making it particularly useful when moving between daytime and evening viewing.

Dolby Vision dynamically optimises compatible HDR content while OLED's pixel-level lighting control provides the deep blacks and highlight precision needed to get the most from cinematic material.

Exceptional Gaming Performance

The LG OLED65C66LB is exceptionally well equipped for modern consoles and gaming PCs.

Its OLED panel has a native 120Hz refresh rate, while compatible PC gaming can use Variable Refresh Rate at up to 165Hz. NVIDIA G-SYNC compatibility and AMD FreeSync Premium help eliminate screen tearing, while VRR, ALLM and a response time of less than 0.1ms keep gameplay fast and responsive.

All four HDMI connections support advanced gaming features including 4K 120Hz, giving owners of multiple consoles or gaming PCs considerably more flexibility than TVs where only one or two HDMI ports provide full bandwidth features.

Dolby Vision gaming at up to 4K 120Hz is also supported.

webOS 26 & AI Hub

LG webOS 26 provides quick access to the major streaming platforms alongside LG Channels and LG’s expanding AI features.

The supplied AI Magic Remote gives you LG’s familiar point-and-click navigation together with direct access to the AI Hub. Features including AI Voice ID, AI Picture Wizard, AI Sound Wizard and AI Chatbot are designed to personalise how the television behaves for different viewers.

Apple users can connect through Apple AirPlay and Apple Home, while Google Cast, Google Home and LG ThinQ integration provide broader smart-home and mobile connectivity.

Dolby Atmos & AI Sound

The built-in 2.2-channel speaker system delivers 40 watts of output and supports Dolby Atmos.

Alpha 11 AI Sound Pro can analyse audio and create a virtual 11.1.2-channel presentation, while Clear Voice Pro improves dialogue clarity. For customers adding a compatible LG soundbar, WOW Orchestra can combine the television speakers with the soundbar rather than simply disabling them.

For a television this thin the integrated sound system is capable, although a dedicated soundbar or home cinema system remains worthwhile if you want audio performance to fully match the C6's picture quality.

LG OLED65C66LB Specification Lookup