Quick answer: Nearly every smart TV sold since around 2017 collects viewing data through a feature called Automatic Content Recognition (ACR), which is enabled by default on most models. It works by sampling snippets of whatever appears on screen, roughly every half a second on some devices, whether that’s a streaming app, cable box, or even something cast from your phone, and matching it against a content database to build an advertising profile. You can’t avoid it by switching brands, but you can turn it off in your TV’s settings.
You’re watching your TV. Your TV is watching what you watch. It isn’t using a hidden camera to do this, it’s quietly fingerprinting everything that crosses your screen and reporting it back. Here’s how the tracking actually works, and exactly where to find the switch that turns it off on the major brands.
What Is ACR, and How Does It Actually Work?
Automatic Content Recognition periodically samples tiny frames or audio snippets of whatever is currently displayed on your TV, then cross-references those samples against a huge database of known movies, shows, and adverts to identify exactly what you’re watching in real time. The capture happens at the HDMI and render level, meaning it sees everything passing through the screen, not just content from the TV’s own built-in apps. That includes a cable box, a Blu-ray player, a games console, or a laptop connected over HDMI, and even content cast from your phone.
This isn’t a hidden or rare feature. It ships enabled by default on most smart TVs sold in the last several years, across every major manufacturer. Switching brands to avoid it doesn’t work, since the practice is industry-standard, not specific to one company.
What Actually Happens to the Data
Your TV manufacturer stores, analyses, and shares this viewing data with partners, including advertisers, data brokers, and marketing companies. These partners use it to build a profile of your interests and serve targeted ads, both on the TV itself and, through cross-referencing with other data like your phone activity or browsing history, potentially across other devices too. Watch a lot of cooking shows, and expect more ads for kitchen products. Stream sports regularly, and betting-app ads tend to follow.
Beyond ACR, smart TVs collect several other categories of data worth knowing about: device identifiers, IP addresses, and Wi-Fi network information for device management; advertising IDs that track your activity for targeted campaigns; and, on TVs with voice assistants or built-in cameras, a separate set of concerns around microphones that can potentially capture audio even when the TV appears to be in standby, and cameras that create an additional, more serious surveillance risk if compromised.
How to Turn Off ACR, by Brand
The setting exists on every major platform, but the name and menu location vary significantly, and manufacturers don’t make it easy to find.
Samsung
On older models: Settings, then Support, then Terms & Policies. Turn off Viewing Information Services (Samsung’s name for its ACR technology) and Interest-Based Advertising. On newer models: Settings, then All Settings, then General & Privacy, then Terms & Privacy. Turn off the same two options there.
LG
Settings, then General, then System, then Advanced Settings, then Live Plus. Turn off Live Plus, LG’s name for its ACR feature, along with any other similarly worded options in that menu.
Sony
Settings, then Initial Setup, then Interactive TV Settings or Samba Interactive TV, depending on your model. Set it to off.
Roku
Settings, then Privacy, then Smart TV Experience. Uncheck “Use Information for TV Inputs” to disable ACR tracking.
After adjusting these settings, it’s worth checking again periodically, since software updates have occasionally reset privacy preferences back to their defaults, and some tracking endpoints have been reported to keep transmitting data even after the user-facing toggle is switched off.
Beyond ACR: Other Privacy Steps Worth Taking
- Keep your TV’s firmware updated. Security researchers note the more credible risk with smart TVs is often compromise by an unauthorised party through an unpatched vulnerability, not just intentional data collection by the manufacturer itself.
- Review and disable features you don’t use. If you never use voice control or the built-in camera for video calling, turning those off reduces both privacy exposure and a genuine security attack surface.
- Consider keeping the TV off your home Wi-Fi entirely and streaming instead through a separate, trusted device, such as a laptop connected via HDMI. If the TV never connects to the internet, the data it collects has nowhere to go.
- Cover or physically disable a built-in camera if your TV has one and you don’t actively use it, the same logic that applies to a laptop webcam.
Is This Actually Legal?
Smart TV data collection practices have faced real regulatory and legal scrutiny. Samsung, for example, agreed to update its language around ad-tracking disclosures in response to a lawsuit filed in Texas. This is an evolving area, and requirements around consent and disclosure continue to shift, so manufacturers’ current privacy policies are worth checking directly if you have specific concerns about how your data is used.
Common Questions
Does turning off ACR stop all data collection from my smart TV?
It significantly reduces content-tracking specifically, but smart TVs also collect other data, including device identifiers and app usage, through separate settings. Review your TV’s full privacy menu, not just the ACR-specific toggle, for more complete control.
Can my smart TV listen to me even when it’s off?
TVs with voice assistant features include microphones that can potentially remain listening for a wake word even in standby mode. If this concerns you, disable voice control features you don’t actively use in your TV’s settings.
Is one TV brand more private than another?
Not meaningfully. ACR-style tracking is standard across all major smart TV manufacturers, so switching brands doesn’t avoid the practice, you still need to actively disable it on whichever TV you own.
Will disabling ACR affect how my TV works?
No. Turning off ACR only stops the content-tracking and related targeted advertising, it doesn’t affect your TV’s core streaming, playback, or app functionality.
Does ACR track content from a games console or cable box too?
Yes. Because ACR captures at the HDMI and render level, it can identify content from any device connected to the TV, not just what plays through the TV’s own built-in streaming apps.
The Bottom Line
Smart TV tracking through ACR is standard industry practice, not a rare or hidden flaw specific to one brand, and it’s enabled by default on most TVs sold in recent years. The good news is that every major manufacturer provides a way to turn it off, even though the setting is often buried several menus deep. Taking a few minutes to find and disable it, along with reviewing voice assistant and camera permissions you don’t actively use, gives you real, meaningful control over what your television reports back about you.