This discount is unprecedented! The 77-inch LG OLED TV is at an absurd price, but you have to be quick

  • 77-inch LG OLED for less than 28 thousand Czech crowns — you've never bought a large OLED from a branded manufacturer this cheaply
  • With the code AUDIOVIDEOTYDNY30 on Alza, you will pay 27,993 CZK instead of the usual 40,000 CZK or more
  • OLED panel with perfect black, 120Hz refresh rate, four HDMI 2.1 ports, and webOS with AI features

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Jakub Kárník
Jakub Kárník
30. 3. 2026 06:30
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Seventy-seven inches of OLED for the price you’d normally pay for a MiniLED TV — that doesn’t happen often. The LG OLED77B56 is now on Alza for 27,993 CZK after entering the code AUDIOVIDEOTYDNY30. This TV had a price tag of over 82 thousand last May, gradually dropping to 40 thousand during promotions — and now it has reached a level where it no longer makes sense to buy anything else. Comparable 77″ OLEDs from competitors cost at least 35 thousand Czech crowns even on sale, usually more like 40 to 50 thousand.

Quick summary:
Makes sense if you want a large OLED screen with perfect black, a 120Hz refresh rate, and full-fledged gaming equipment for a fraction of the usual price.
⚠️ Consider if you plan to put the TV in a very brightly lit room — the panel is glossy, and the average brightness for the OLED category means that in direct sunlight, you’ll mostly see your reflection. And without a soundbar, it won’t feel like a cinema.
💡 For 27,993 CZK you get 4K OLED, 120 Hz, four HDMI 2.1 ports, VRR with Nvidia G-Sync, Dolby Atmos, webOS with AI features, Magic Remote, and a three-year manufacturer’s warranty.

OLED Black for the Price of an LED TV

The B series is the entry point into the world of LG OLED TVs — and that’s precisely why it’s so interesting. You won’t get the peak brightness of the C or G series, but you’ll get what makes OLED an OLED: perfect black color, which no LED or Mini LED TV can replicate. Perfect Black technology is UL certified, and in practice, it means that in a darkened room, you’ll only see what’s supposed to be lit — the rest is absolute darkness. One user on Alza aptly described it: once you see the black from an OLED, you won’t go back.

The panel has a resolution of 3,840 × 2,160 pixels with a refresh rate of 100/120 Hz, and the Alpha 8 AI Gen2 processor handles upscaling lower resolutions to 4K. HDR support is handled by HDR10 and HLG formats — but forget about HDR10+ or Dolby Vision, which is an expected compromise for an entry-level series. Foreign reviewers measured peak brightness around 670 nits on a 10% window, which is a standard value for a W-OLED panel. For comparison: the higher-end LG C5 series offers almost double. In practice, this means the TV excels in the evening and in dim light, but in a sun-drenched room, you’ll have to draw the curtains.

A Gamer’s Dream for a Third of the Price

Where the LG B5 (B56 is the European designation) truly shines is gaming. Four HDMI 2.1 ports support 4K at 120 Hz, along with VRR with support for both AMD FreeSync Premium and Nvidia G-Sync, automatic game mode ALLM, and Dolby Vision gaming. The measured input latency is just 9.1 milliseconds, making this TV one of the fastest in its entire price category. The game optimizer in the menu then allows you to fine-tune black levels and input lag as needed.

For less than 28 thousand, you get gaming equipment that is on par with TVs costing twice as much. Four full-fledged HDMI 2.1 ports mean you can connect a PlayStation, Xbox, PC, and set-top box all at once — without re-plugging cables.

webOS, AI Features, and a Remote You’ll Get Used To

The webOS system has long been one of the best TV platforms, and LG guarantees four major updates over five years. You’ll find all the important streaming services here — Netflix, Disney+, HBO Max, YouTube, Apple TV, Amazon Prime Video, and the Czech Oneplay. The new webOS adds AI features like AI Concierge for personalized recommendations, AI Search for content discovery, and AI Chatbot for troubleshooting directly from the remote.

The Magic Remote acts like an air mouse — you move the cursor across the screen by moving your hands. Most users praise the intuitive controls, but switching from another brand requires a few days to get used to it. Several reviewers mention ads on the webOS home page — the good news is that they can be turned off in the settings.

What to Watch Out For

The built-in 20W speakers with Dolby Atmos support can handle news, series, and casual viewing without issues. However, they are not sufficient for a cinematic experience befitting a 77-inch OLED panel — bass is lacking, and the sound stays close to the screen. Practically every satisfied user on Alza adds in the same breath: buy a soundbar. LG offers the WOW Orchestra feature, which allows compatible soundbars to work with the TV’s speakers for a more pronounced sound.

The glossy panel is the second thing worth knowing beforehand. OLED TVs generally do not have an anti-reflective coating like some premium LCD panels, so you will see reflections in a brightly lit room. In the evening and in dim light, it’s an advantage — the image appears deeper and more contrasted. The return rate on Alza is 1.58%, with a rating of 5.0 out of 5 from 104 customers, and 100% of buyers recommend the TV. These are numbers that speak for themselves.

Verdict

The LG OLED77B56 for 27,993 CZK is probably the best price-to-performance ratio you’ll find for a large OLED panel in the Czech Republic right now. Perfect black, 120Hz smoothness, four HDMI 2.1 ports for gamers, webOS with a complete range of applications, and a 195cm diagonal — all for a price at which competitors sell 65-inch models. The only conditions for satisfaction are a darker room and the willingness to buy a soundbar. If you meet these, there’s no need to look further.

Do you have an OLED at home, or are you still watching a classic LED panel?

About the author

Jakub Kárník

Jakub is known for his endless curiosity and passion for the latest technologies. His love for mobile phones started with an iPhone 3G, but nowadays… More about the author

Jakub Kárník
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