How to change your K-series Samsung Smart TV country to download foreign apps
Step 1:
Choose TV as a source with your remote.
Step 2:
Select Menu on your remote
Step 3:
Select System
Step 4:
Select Setup. Continue the setup as you’d usually do and stop at the Terms and Conditions page.
Step 5:
On the Terms and Conditions page, enter one of the following sequence on your remote:
Mute -> Volume Up -> Channel Up -> Mute
Or
Forward -> 2 -> 8 -> 9 -> Rewind
Step 6:
A list of all countries will appear. Choose US or UK according to the apps you want available.
Step 7:
Accept the Terms and Conditions and continue setup as usual. When the setup is done you'll be able to download any app available in the country you chose.