Amazing TV under 19 thousand! This MiniLED TCL has 720 dimming zones, Bang & Olufsen sound, and supports 144 Hz

If you are looking for a TV with Mini LED backlighting and don’t want to exceed twenty thousand, TCL 55C89K is now on Alza for 18,743 CZK after applying the discount code AUDIOVIDEOTYDNY25. The original price was 25,990 CZK. If you also use the Alza Benefit program, the final amount can drop even more significantly — I personally have the price under 16,000 CZK. In addition, as part of the promotion, you will receive 6 months of SledováníTV subscription for free.

Quick summary:
✅ Makes sense if you want a premium picture with Mini LED backlighting and 720 dimming zones in a compact 55″ diagonal — whether for movies, games, or as a large monitor for a computer.
⚠️ Consider whether the Google TV platform suits you and if 55″ is enough for you — a larger 65″ version might be more suitable for the living room.
💡 For 18,743 CZK (with code) you get parameters that usually cost more with competitors

720 dimming zones for the price of a basic TV

The main trump card of TCL 55C89K is its backlighting. Mini LED technology with 720 local dimming zones ensures precise brightness control across the entire screen. In practice, this means deeper blacks, higher contrast, and minimal “halo” effect around bright objects on a dark background. For comparison — many competing Mini LED models in this price category offer 200–400 zones. Seven hundred twenty is an above-average value for a 55″ panel.

TCL used an HVA panel with an anti-reflective coating and high native contrast. Viewing angles are solid; the picture remains legible even from the side of the room. The resolution is, of course, 4K Ultra HD, and the TV supports all major HDR standards: HDR10, HDR10+, HLG, Dolby Vision, and Dolby Vision IQ. Add to that IMAX Enhanced certification and Filmmaker Mode — a combination you won’t find elsewhere at this price.

Games, sports, movies — also as a monitor for a PC

The refresh rate of 144 Hz in game mode, along with HDMI 2.1, ALLM, VRR, and FreeSync Premium Pro certification, make this TV a solid gaming display. The Game Bar allows quick access to latency, FPS, and aspect ratio settings directly from the game. This is essential for both console gamers and PC enthusiasts — a 55″ panel with this equipment also offers itself as an alternative to expensive gaming monitors.

And here we come to an interesting trend: more and more people are using a TV as an external monitor for a PC or MacBook. If you have a sufficient viewing distance (at least a meter, ideally a meter and a half), a 55″ 4K panel with an anti-reflective coating and 144 Hz can be a better investment than a dedicated monitor. You connect your notebook via HDMI, activate game mode for low latency — and you have a huge workspace and entertainment center in one.

Sound you won’t find in cheaper TVs

TCL 55C89K is equipped with Bang & Olufsen speakers with a total output of 60 W and a built-in subwoofer on the back. Support for Dolby Atmos and DTS:X creates spatial sound that is surprisingly decent for built-in speakers. Users on Alza particularly praise the bass and overall richness of the sound — several reviewers state that thanks to this audio, they didn’t need to buy a soundbar.

Of course, anyone who wants a home cinema-level film experience will opt for external audio. But for casual watching of series, YouTube, or gaming, the integrated sound is more than sufficient.

Google TV and Connectivity

The Google TV system offers access to all major streaming services and provides personalized content recommendations. Voice control via Google Assistant works directly from the backlit remote control. Content sharing from a phone or tablet is handled by both Google Cast and Apple AirPlay 2 — so if you have an iPhone and want to mirror the screen, it’s not a problem.

Connectivity includes 4× HDMI (including HDMI 2.1), USB, Ethernet, Wi-Fi, and Bluetooth. The TV also supports DVB-T2/S2/C with a CI+ slot. Wall mounting is possible via VESA 300×300; the stand is height-adjustable.

What Users Say

The rating on Alza is 4.6 out of 5 from 19 reviews — a small sample, but mostly positive. The picture quality is repeatedly praised, especially in Dolby Vision IQ mode, where the TV automatically optimizes the picture according to ambient lighting. Several users mention that after initial calibration, the picture is on par with significantly more expensive models. The sound from Bang & Olufsen is pleasantly surprising. Occasionally, there are reservations about the software stability of Google TV and the inability to uninstall pre-installed applications.

Verdict: Mini LED under twenty thousand with premium features

TCL 55C89K at its original price of 25,990 CZK was a solid TV in strong competition. For 18,743 CZK after the discount code AUDIOVIDEOTYDNY25 — and potentially even less with Alza Benefits — it is one of the best values on the market for 55″ Mini LED TVs. 720 dimming zones, 144 Hz, Dolby Vision, HDMI 2.1, Bang & Olufsen speakers with a subwoofer, and Google TV with AirPlay 2.

Do you also use your TV as a computer monitor, or are they still two separate worlds for you?