I work on this technology(not for Samsung), they do not upload the screenshots. They upload a cryptographic hash of the image and match it to known content. Als

I work on this technology(not for Samsung), they do not upload the screenshots. They upload a cryptographic hash of the image and match it to known content. Also, this is true of nearly every smart TV available for purchase and quickly being integrated into projectors. If you want to turn off the functionality, you will have to go through the feature sets of the devices.