The Telly That Watches Back: Switching Off Smart TV Tracking in 2026

Smart TVs are not just televisions any more. They are internet-connected advertising surfaces with a screen attached. And one of the cleverest bits of plumbing inside them is automatic content recognition, usually shortened to ACR. It is the reason your telly can serve up a perfectly timed ad for a car you glimpsed in a programme, and the reason a lot of UK households have handed over a viewing diary without really noticing.

This is not a scare story about your TV spying on you through the camera. Most sets do not even have one. The more mundane truth is that ACR samples what is being shown or played, turns that into a fingerprint, and matches it against a database. The result is a fairly detailed picture of your viewing habits, your app use and your ad exposure. Useful for recommendations. Also useful for targeted advertising, which is where the money is.

What ACR is actually collecting

ACR does not normally record your living room. It looks at the content on screen, and sometimes audio, and creates a signature that can be matched to a known programme, film, advert or channel. Depending on the set and the settings, it can log channel changes, streaming apps opened, titles watched, adverts seen and how long you lingered. It may also attach a device identifier or advertising ID.

Some TVs limit ACR to the built-in tuner and apps. Others, notably some Roku sets, have an option that uses information from TV input sources as well. That means the box, console or laptop plugged into HDMI could be part of the picture if the setting is left on. The exact behaviour varies by brand, model and firmware, which is why the switches matter more than the marketing copy.

Where UK GDPR and the ICO fit

Viewing data can be personal data. If it can be linked to you, your household or a device identifier, UK GDPR applies. The TV maker and its advertising partners need a lawful basis, clear information and a fair balance of interests. Transparency is not optional. Nor is the right to object to processing based on legitimate interests.

The Information Commissioner's Office has repeatedly made the point that privacy notices should be clear, not buried in a 40-page scroll-fest during setup. Consent is not always the required basis for ACR, but legitimate interests still need a proper assessment and a real route to opt out. If a telly offers an off switch, it should respect it. A firmware update should not quietly flick it back on.

If you have opted out and still see no clear explanation of what is happening, you can complain to the manufacturer first and the ICO if that gets you nowhere. This is not legal advice, just a reminder that 'smart' does not mean 'anything goes'.

The 2026 brand-by-brand switch-off list

Menus move around, and names differ by model and region. Search for 'privacy', 'advertising', 'viewing information' or 'interest-based ads' if the path below does not match your set. Treat this as a map, not a treasure hunt guarantee.

Samsung

• Go to Settings > All Settings > General & Privacy > Terms & Privacy.
• Turn off Viewing Information Services.
• Turn off Interest-Based Ads.
• Check any Samsung Account privacy settings and reset the advertising ID if you want a clean slate.

LG

• Go to Settings > All Settings > General > Privacy & Terms, or look under Support > Privacy.
• Turn off Live Plus.
• Turn on Limit Ad Tracking.
• Check for a separate viewing information or advertising option and switch it off.

Sony

• Go to Settings > Privacy.
• Turn off Samba Interactive TV if your model has it.
• Turn off Advertising or Interest-Based Ads.
• Turn off any option to send TV usage data.

Amazon Fire TV

• Go to Settings > Preferences > Privacy Settings.
• Turn off Interest-Based Ads.
• Turn off Collect App Usage Data.
• Turn off Collect Over-the-Air Usage Data.
• Turn off Device Usage Data where offered, and reset the advertising ID.

Roku

• Go to Settings > Privacy > Advertising.
• Turn on Limit Ad Tracking.
• Turn off Smart TV experience, which is the setting most associated with ACR on Roku sets.
• Turn off Use information from TV input sources if it appears, and reset the advertising ID.

How to check it is actually off

Do not trust one switch. After changing the settings, go back in and confirm they have stuck. Then do a second check at the router. Open your router admin page, find the TV in the connected devices list, and look at its outbound activity. If the set is still chatting regularly to advertising or analytics domains, you have options: block those domains, put the TV on a guest network, or isolate it on a separate VLAN if your router supports it.

Network-level blocking can break apps or firmware updates, so use it as a belt-and-braces measure rather than a first move. A simpler test is to reset the advertising ID after opting out, then check the privacy settings again a week later. If an update has undone your choices, document it with screenshots and contact the maker. Persistent resetting is exactly the sort of thing the ICO should hear about.

If the switches keep flipping back

Firmware updates are the usual culprit. Manufacturers sometimes re-prompt for consent or restore defaults after a major update. Check your settings after every big update, especially if the TV suddenly gets chattier. If you want the nuclear option, do not connect the TV to the internet at all and use a streaming stick or box instead. Just remember that the stick has its own privacy settings, so you have not escaped the game, only changed the player.

Your smart TV is taking notes. The good news is that you can make it put the pen down. The better news is that you can check whether it has picked it back up.