The word 4K gets used a lot in advertising, but behind it stands a concrete technical chain: the channel itself has to be broadcast in 2160p, your internet has to deliver the stream without breaks, your device has to decode it, the cable has to carry it and the screen has to show it. If one of those five links is weak, the result isn't 4K — even when the subscription does include 4K channels.
On this page we take that chain apart link by link: which channels are really UHD, what you need, why 4K sometimes doesn't appear and what you can change to put it right.
The real 4K and 2K channels on the list
Our published channel list has a separate category called Turkey national UHD-QHD with 19 channels in it. Some of them are 4K (2160p) and some are 2K (QHD).
It has to be said honestly: not all 10,000+ channels are 4K. The number of channels broadcasting in 4K worldwide is still limited — that is the state of the broadcasting industry, not of our subscription. Azerbaijani and Russian channels are in HD and Full HD, while the Turkish national channels have UHD versions. All the categories: channel list.
Some channels on the list have “HD+” in their name. That means the channel is delivered at a higher bitrate, but the resolution is still Full HD. Real 4K channels have “4K”, “UHD” or “2160p” in the name. Knowing the difference matters — advertising often mixes the two deliberately.
What 4K needs — five links
Internet: 25+ Mbps
A 4K stream wants two to three times the bandwidth of HD. If 12–15 Mbps is enough for Full HD, 4K needs 25 Mbps and up. Because speed test results vary through the day, check the evening hours too.
Screen: a real 4K panel
The television's resolution has to be 3840×2160. The words “supports 4K” sometimes only mean it accepts the signal while the panel is Full HD — you have to look at the model's technical sheet.
Device: HEVC decoding
4K streams use H.265 (HEVC) encoding. If the device has no hardware support for it, the processor is loaded and the picture freezes. On Android boxes this is the most common limitation.
Cable: HDMI 2.0 or later
HDMI 1.4 isn't enough for 4K at 60 frames. Both the cable version and the version of the television's HDMI input have to be taken into account.
Network: a cable connection
With 4K, Wi-Fi congestion shows itself immediately. A LAN cable is the single step that stabilises 4K viewing the most.
The channel itself
The first link in the chain. If a channel is broadcast in 1080p, a 4K television enlarges it to fit, but that isn't 4K — it is upscaling.
4K capability by device
| Device | 4K status | Note |
|---|---|---|
| 2018+ Smart TV (Samsung, LG, Sony) | Supported | Keep hardware decoding enabled inside the player — Smart TV |
| Android TV box (4 GB RAM, HEVC support) | Supported | Cheap boxes with 1–2 GB of RAM freeze on 4K — Android |
| Apple TV 4K | Supported | Use a cable if it has an Ethernet port — Apple devices |
| Apple Silicon Mac (M1 and later) | Supported | Hardware decoding works — macOS |
| Windows PC | Supported | You need the HEVC extension and a recent graphics driver — Windows |
| Phones and tablets | No visible difference on screen | A phone screen is too small for 4K to mean anything, while the data use is high |
Why 4K sometimes doesn't appear
“I opened a 4K channel but the picture looks like Full HD” is the most frequently asked question. The cause comes from three places, and working out which one it is takes a few minutes.
The channel itself isn't 4K
A channel without “4K”, “UHD” or “2160p” in its name is not 4K. The television enlarges it to fit — that isn't an increase in quality.
The internet isn't enough
When the speed falls short the player automatically drops to a lower quality so the stream doesn't break. So the problem doesn't look like “freezing” but like “the quality is low”. Run a speed test in the evening hours.
The device can't decode it
On a device without HEVC hardware support the player either slows the picture down or opens the lower version. Check the box's specifications.
The cable or the HDMI input is weak
An HDMI 1.4 cable either won't show 4K or shows it at 30 frames. You need to change the cable and, on the television, enable the “enhanced” mode for the HDMI input.
The display setting is too low
If the display resolution on a computer is still 1920×1080, a 4K stream is shown at that size too. Choose 3840×2160 in the settings.
On Samsung this setting is called HDMI UHD Color and on LG HDMI Ultra HD Deep Colour, and it may be off by default. While it is off, the television only accepts a limited signal on that HDMI input — so even with a 4K source plugged in you get Full HD. The setting has to be enabled for the exact input you are using.
Internet speed: the numbers and the reality
| Quality | Speed required | Practical note |
|---|---|---|
| HD | 8–10 Mbps | Comfortable for one screen |
| Full HD | 12–15 Mbps | The most widely used quality |
| 4K Ultra HD | 25+ Mbps | Risky without a cable connection |
There is one detail: these figures are for one screen. If two screens at home will watch 4K at the same time, the requirements add up — you need something around 50 Mbps. For that you have to look at your internet plan's real speed under load, not the advertised maximum. Multi-screen use: multi-device subscription.
- Run the speed test between 8pm and 11pm — that is the network's busiest time and it shows the real picture.
- Run the test on a device connected by cable where you can. A result over Wi-Fi also measures the router's capability, not just the internet speed.
- If the speed is sufficient but 4K still freezes, the issue isn't the speed — it is the latency or the device.
Check 4K for yourself on the trial
The most honest answer about 4K comes not from an advert but from your own television. On the 24-hour free trial you open a channel such as TRT 4K UHD and see the result with your own internet and your own device. No card details are asked for and no automatic subscription starts — the terms are on the trial page.
Open a 4K channel and watch for 10–15 minutes: everything can look fine in the first 30 seconds, with the problem appearing later. At the same time, open a video on another screen — see what happens when the network is split. Write us the result on WhatsApp and we will adjust the settings if needed.
Price: there is no extra charge for 4K
Our subscription has no such thing as a “4K package”. The UHD channels are included in every plan — someone paying 13 AZN sees the same list as someone paying 90 AZN. The only difference is the subscription term and the number of screens open at the same time.
- 17,960 live channels
- HD, Full HD and 4K
- Film and series archive
- Works on every device
- 24/7 WhatsApp support
- 17,960 live channels
- HD, Full HD and 4K
- Film and series archive
- Works on every device
- 24/7 WhatsApp support
- Price stays fixed
- 17,960 live channels
- HD, Full HD and 4K
- Film and series archive
- Works on every device
- 24/7 WhatsApp support
- Price stays fixed
- Free setup
The figures explained in full: prices page. Questions about the setup: setup.
Open a UHD channel on the 24-hour trial and make sure your internet and your device are up to it. If anything needs adjusting, we tune the settings together.
Frequently asked questions
Are all the channels 4K?
No — and don't believe an offer that claims they are. The number of channels broadcasting in 4K worldwide is still limited.
We have 19 channels in the Turkey national UHD-QHD category — TRT 4K UHD 2160p, Show TV 4K, Kanal D 4K, ATV 4K, Star TV 4K, TV 8 4K and others. The remaining channels are in HD and Full HD.
What internet speed does 4K need?
For 4K on one screen you need 25 Mbps and up. For comparison: HD needs 8–10 Mbps and Full HD 12–15 Mbps.
If two screens at home will watch 4K at the same time, the requirements add up. Run the speed test in the evening hours and, if you can, on a device connected by cable — only that shows the real picture.
I opened a 4K channel but the picture looks like Full HD — why?
It is one of five causes: the channel's name has no “4K/UHD/2160p” in it, the internet speed falls short and the player has dropped to a lower quality, the device has no HEVC hardware support, the HDMI cable or input version is old, or the display setting is still 1080p.
Checking the HDMI UHD Color (Samsung) or HDMI Ultra HD Deep Colour (LG) setting on the television is the step that helps most often.
Is there an extra charge for the 4K channels?
There isn't. The UHD channels are included in every subscription — we don't sell a separate “4K package”. You see the same list on the 13 AZN one-month subscription too.
The only things that affect the price are the subscription term and the number of screens open at the same time: 1 device 13 AZN, 2 devices 18 AZN, 3+ devices 22 AZN.
Will 4K work if my HDMI cable is old?
For 4K at 60 frames you need HDMI 2.0 or later; HDMI 1.4 either won't show the picture or reduces the frame rate. A cable is a cheap component and changing it is the easiest step.
Besides the cable, the mode of the television's HDMI input matters too — it may be in a limited mode by default and has to be enabled in the settings.
Is there any point watching 4K on a phone?
Practically none. A phone screen isn't big enough to show the difference between 4K and Full HD, while the data use goes up two to three times.
If you are watching on mobile internet, choosing HD or Full HD is both smoother and more economical. Save 4K for a big screen.
Is an Android box suitable for 4K?
You need a suitable model. A box with at least 4 GB of RAM, HEVC (H.265) hardware support and an HDMI 2.0 output runs 4K comfortably.
Cheap boxes with 1–2 GB of RAM cause no trouble in HD but freeze on 4K. Choosing a model with a LAN port matters too — with 4K, Wi-Fi congestion shows itself immediately.