Question: how to change samsung tv app store country?
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.