In short: Almost every modern smart TV runs a technology called ACR (Automatic Content Recognition) — every few seconds it takes a digital fingerprint of whatever is on screen and matches it against a database to figure out exactly what you are watching: broadcast TV, a streaming app, or a picture coming in over HDMI. That data is tied to your home IP address and sold to ad networks and data brokers. ACR lives in the TV firmware, so the first and most important step is to turn it off in the privacy settings (on Samsung it is Viewing Information Services, on LG it is Live Plus). A VPN cannot stop the TV from taking fingerprints, but it hides your home IP and breaks the link between what you watch, your household, and your other devices.
What ACR is and how the TV sees your screen
ACR stands for Automatic Content Recognition. It is a firmware feature, not a virus or a separate app you can uninstall. Manufacturers turn it on by default, and you usually agree to it during the initial setup while scrolling past the terms of service.
The mechanism is simple. The TV periodically grabs a snapshot of the frame (and sometimes a short audio sample), turns it into a compact hash fingerprint, and sends it to the manufacturer or its partner. There the fingerprint is compared against a huge database of films, shows, ads, and channels, and the system learns what you are watching in that second. It is the same idea as recognising a song from a clip, only for video.
The key point: ACR works regardless of which app you use. It recognises built-in streaming as well as what you cast from a game console, laptop, or set-top box over HDMI. To the TV it is just pixels on the panel — the source does not matter.
- the screen snapshot is taken automatically, often every few seconds;
- it recognises not only streaming but also broadcast TV, ads, games, and external HDMI sources;
- the data goes to the manufacturer or a partner (for example, Samba TV);
- a device identifier and your IP address are attached to every fingerprint.
What data your smart TV collects and who buys it
A viewing history sounds harmless on its own. The problem is that it does not stay inside the TV: manufacturers monetise it by merging it with advertising profiles and passing it to data brokers. The record of what a given household watches is a valuable product on the ad market.
The Vizio case shows how real this is. In 2017 the U.S. Federal Trade Commission (FTC), together with New Jersey authorities, fined the manufacturer 2.2 million dollars: Vizio TVs collected viewing histories from 11 million devices without owners knowing, logged the MAC addresses of nearby devices on the network, matched viewing to the IP address, and sold the resulting profiles to advertisers. This is documented court practice, not a hypothesis. The issue is still live: in March 2026 Samsung disabled ACR for viewers in Texas under legal pressure — yet in most regions the feature remains on by default.
What ends up in such a profile:
- what you watch and when — down to specific programmes and ads;
- your home IP address, which reveals your city and internet provider;
- other devices on your network, visible by their MAC addresses;
- sometimes voice queries, if you use the assistant in the remote.
This data is then stitched together with your advertising profile on your phone and in your browser. That is how an ad conveniently knows about the film you watched on TV yesterday. It is worth turning off ad-ID collection on your phone too — see the separate guide on the advertising identifier. The TV is part of the same tracking ecosystem as the rest of your smart home devices.
What ACR is called on each brand
Manufacturers hide ACR behind neutral names, so you will not find it in the menu by searching for tracking. Here is where to look on popular platforms:
| Brand / OS | ACR name | Where to disable |
|---|---|---|
| Samsung (Tizen) | Viewing Information Services | Settings → Privacy Choices |
| LG (webOS) | Live Plus | Settings → General → Live Plus |
| Sony / Bravia (Google TV) | Samba Interactive TV | Settings → Apps → Samba |
| Vizio | Viewing Data (Inscape) | Settings → Admin & Privacy |
| Roku | Smart TV Experience | Settings → Privacy |
| Amazon Fire TV | Device Usage Data | Settings → Privacy |
The menu labels get renamed and moved between sections over time. If you cannot find it by name, check the Privacy, Advertising, and User Agreements sections — ACR almost always hides there.
Does a VPN protect you from TV tracking
The honest answer: a VPN does not turn ACR off. The TV firmware itself takes the screen fingerprints, and as long as the feature is on it will keep producing them — encrypting the traffic does not stop that. So the first step is always the same: disable ACR in the settings (step by step below).
But a VPN has its own concrete role. The collected data is nearly useless to an advertiser until it is tied to you. The main glue is your home IP address: it is what links your TV viewing to your phone and laptop activity on the same network and to your geolocation. If the TV (or the whole router) reaches the internet through a VPN, the outside world sees the VPN server address, not your home one. The link this household watches this breaks, and your provider stops seeing which services you stream.
| What happens | Disabling ACR | VPN on router/TV |
|---|---|---|
| TV takes screen fingerprints | Stops it | No effect |
| Viewing data is sent to the server | Stops it | No effect |
| Viewing is tied to your home IP | — | Hides the real IP |
| Provider sees which services you stream | — | Encrypts the traffic |
| TV data is merged with your phone on the same network | Partly | Breaks the IP link |
One nuance: most TVs have no native VPN app, so you protect them at the router level — then the VPN covers the TV and every device at once. How that works is covered in the guide on VPN for Smart TV and Apple TV. To see which threats a VPN closes and which it does not, read what a VPN protects against, and for the basic mechanism of masking your address see how to hide your IP address. You can pick a nearby server for stable streaming without exposing your home IP on the LiMP VPN servers page.
How to disable ACR: step by step per platform
The exact labels depend on the model year and firmware, but the logic is the same everywhere. Below are the current paths for popular platforms in 2026.
Samsung (Tizen)
Settings → All Settings → Privacy Choices. Turn off Viewing Information Services and Interest-Based Advertising. If you like, withdraw your consents in the user-agreements section.
LG (webOS)
Settings → General (or System) → Live Plus — turn it off. Then Settings → General → Advertisement → enable Limit Ad Tracking and Do Not Sell My Personal Information. In User Agreements, uncheck Viewing Information, Interest-Based Ads, and Voice Information.
Sony and others on Google TV / Android TV
Disable the Samba Interactive TV app (Settings → Apps → Samba → disable). Then in Settings → Privacy → Ads, reset the advertising identifier and turn off personalisation. The same path works for most Android TV and Google TV sets.
Roku
Settings → Privacy → Smart TV Experience — uncheck Use Information from TV Inputs. In the same Advertising section, enable Limit Ad Tracking.
Amazon Fire TV
Settings → Preferences → Privacy Settings. Turn off Device Usage Data, Collect App and Over-the-Air Usage, and Interest-Based Ads.
After disabling it, reset the TV advertising identifier — that breaks the link to the profile already built, much like MAC address randomisation stops your phone from being tracked over Wi-Fi.
Checklist: a private smart TV in 20 minutes
- during initial setup, decline everything optional — viewing and advertising agreements are not needed to show a picture;
- disable ACR in the privacy settings (Samsung — Viewing Information Services, LG — Live Plus, Sony — Samba);
- turn off ad personalisation and reset the TV advertising identifier;
- disable the microphone in the remote if you do not use the voice assistant;
- where possible, put the TV online through a VPN on the router to hide your home IP;
- move the TV and other smart devices onto a separate guest Wi-Fi so they cannot see your phones and laptops;
- recheck the settings every few months — firmware updates sometimes re-enable data collection.
Frequently asked questions
Will disabling ACR slow down or break the TV?
No. ACR only handles content recognition for ads and recommendations. Streaming apps, broadcast, HDMI inputs, and updates keep working as usual — you only lose the personalised suggestions and some targeted ads.
Does ACR listen through the microphone?
No, those are two different things. ACR analyses the picture on screen, not your conversations. Listening to the room is the job of the voice assistant in the remote, which you disable separately.
Does the TV collect data without the internet?
With no network there is nowhere to send the fingerprints, but many models cache them and upload as soon as the TV is online again. Turning off Wi-Fi entirely is drastic and costs you all smart features and security updates.
Can ACR see what I watch from a console or box over HDMI?
Yes. To the TV an HDMI input is just another image source, and ACR recognises its content the same as built-in apps.
Will an antivirus protect the TV from ACR?
No. ACR is a built-in manufacturer feature, not malware, so an antivirus will not see it. It can only be turned off in the TV privacy settings.
Can I delete data that was already collected?
In jurisdictions with data-protection laws (GDPR in the EU, CCPA in California) you can send the manufacturer an access and deletion request. Also reset the TV advertising identifier to break the link to the old profile.
Is a VPN alone enough to stop TV tracking?
No. A VPN hides your home IP and encrypts traffic, but it does not stop the TV from taking fingerprints. It works as a pair: first disable ACR, then add a VPN on the router as a second layer.