Question: how to change app store country on samsung smart tv?
Answer: Press the Smart Hub button on you remote control.
When Smart Hub has loaded then press », 2, 8, 9, « (fast forward, 2, 8, 9, rewind).
Under Internet service location, select the country you wish to use. ... 
Once you have selected the country you wish to use, press Next.
Click Agree to agree to Terms of Service.