Automatic Content Recognition (ACR) is a feature built into many smart TVs and streamers that identifies what’s playing on-screen. While it enables personalized recommendations and targeted advertising, it also means viewing habits and other signals are being sent off the device — a practice many users regard as a privacy intrusion.

Roku devices include ACR-style data collection as part of their smart-TV experience, but it isn’t permanent. You can stop the flow of viewing data by changing privacy-related settings on your Roku device or within your Roku account. The option to disable recognition or personalized advertising is usually grouped under privacy, advertising or personalization controls.

Turning off ACR or ad personalization is straightforward: open your Roku settings or account privacy dashboard, find the privacy/advertising controls and switch off content recognition or ad personalization options. After disabling these features, your Roku should stop sending the viewing data used to build targeted profiles, though it may take a restart or software update to apply changes fully.

Keep in mind that disabling ACR limits personalized ads and some recommendation features but won’t affect legal obligations or app-specific tracking. Individual streaming apps can still collect data through their own trackers and account settings, so review permissions inside apps and check for software updates to keep your device’s privacy controls current.