Then, enable the Unknown Sources permission by toggle the “Allow unknown sources” switch.
To enable this setting, open the Settings menu on your device and navigate to the “Personal” or “Add-Ons” tab. To install Google Play on Samsung Smart TV, first, you must enable the Unknown Sources settings on your device.
How Do I Install Google Play on My Smart TV?
Where Do I Find Playstore on My Samsung Smart TV?.How Do I Install Google Play on My Smart TV?.