LG Smart TV data collection is under scrutiny after a new investigation revealed that the TVs may gather more information than previously thought. The study, conducted by Gamers Nexus and Level1Techs with cybersecurity experts, found that LG televisions go beyond simple content recognition and may scan local networks for other devices. This raises fresh concerns about privacy in the living room.
How ACR Works on LG Smart TVs
Automatic Content Recognition (ACR) is a technology that has been used in smart TVs for years. It works like a Shazam for your TV: it takes samples of audio or video displayed on screen, creates a digital fingerprint, and compares it to a database. This allows the TV to identify what you're watching, even if it's from an external device like a gaming console or laptop connected via HDMI.
A previous study from UCL, UC Davis, and Universidad Carlos III in 2024 already demonstrated that LG and Samsung TVs could recognize content from HDMI-connected devices. More recent tests by Rtings with an LG G5 showed that ACR-related traffic increased when a PS5 was connected or when browsing from a laptop. The good news is that ACR can be disabled.

Beyond ACR: Local Network Scanning
Using the network analysis tool Wireshark, researchers examined the traffic generated by several LG TVs. They discovered that these TVs were making queries on the local network to find other devices. This means the TV is not just monitoring what you watch but also what other devices are connected to your home network.
This behavior is particularly concerning because it could reveal a detailed map of your household's devices, from smartphones to smart home gadgets. While LG has not yet commented on the specifics, the company has stated that it collects data to improve services and provide personalized recommendations.
What This Means for Your Privacy
The implications for privacy are significant. If your TV can identify other devices on your network, it could potentially infer your viewing habits, daily routines, and even the types of devices you own. This data could be used for targeted advertising or shared with third parties.
Moreover, the study highlights that even if you disable ACR, the TV may still engage in other data collection activities. It's essential to review your TV's privacy settings and understand what data is being collected and how it's used. The background to this story is set out in Meta Smartglasses Backlash: Privacy Concerns and Creep Glasses. A related thread runs through Florida Sues Netflix Over Minors' Data Collection and Privacy. Earlier coverage in Facial Recognition Privacy Dilemma at Coles and Woolworths shows how the argument developed.
Key Takeaways
- ACR identifies content by creating digital fingerprints of audio and video, even from HDMI-connected devices.
- Local network scanning allows the TV to discover other devices on your home network, raising privacy concerns.
- Disabling ACR can stop content recognition, but other data collection may persist.
- Review privacy settings regularly to limit data sharing and opt out of personalized ads.
- Stay informed about research and updates from manufacturers regarding data practices.
Comparison of Data Collection Features
| Feature | What It Does | Can You Disable It? |
|---|---|---|
| ACR (Automatic Content Recognition) | Identifies content on screen via audio/video fingerprints | Yes, in settings |
| Local Network Scanning | Discovers other devices connected to your network | Limited options |
| Viewing Data Collection | Tracks apps and channels watched | Yes, via privacy settings |
| Voice Recognition | Processes voice commands (if enabled) | Yes, can turn off microphone |
How to Protect Your Privacy
To minimize data collection, start by disabling ACR in your TV's settings. This will stop the TV from identifying content on screen. Next, review the privacy policy and opt out of personalized advertising where possible. Also, consider disconnecting your TV from the internet when not in use, or using a separate streaming device that offers more privacy controls. A closer look at the same subject appears in AI Workplace Surveillance in Australia: Privacy Concerns Grow. Anyone following the wider picture can start with EEOC Data Collection Cuts Threaten Workplace Discrimination. The same theme surfaces in EEOC Votes to End Workplace Discrimination Data Collection, which takes a different angle.
Keep your TV's firmware updated, as manufacturers may release patches that address security and privacy issues. Finally, stay informed about ongoing research and any statements from LG regarding their data practices. Context on how this played out before sits in MetaSurvey Plus exclusive Review: Smarter Data Collection (Guide). A companion piece, Meta Smartglasses: Privacy Concerns and Real-World Impact, approaches the same subject from another angle.
FAQ
What is ACR on LG Smart TVs?
ACR stands for Automatic Content Recognition. It's a technology that captures audio or video samples from your TV screen, creates a digital fingerprint, and matches it against a database to identify what you're watching. This data is often used for targeted advertising.
Can I turn off ACR on my LG TV?
Yes, you can disable ACR in your TV's settings, usually under Privacy or General settings. Look for an option like 'Live Plus' or 'ACR' and turn it off. Note that disabling ACR may affect personalized recommendations.
Does LG collect data from HDMI-connected devices?
According to studies, LG TVs with ACR enabled can recognize content from devices connected via HDMI, such as gaming consoles or laptops. This means the TV can identify what you're playing or watching even if it's not through the TV's own apps.
What did the recent study find about LG TVs?
The study by Gamers Nexus and Level1Techs found that LG TVs not only use ACR but also scan the local network to discover other connected devices. This suggests a broader scope of data collection than previously known.