I'm very sorry for the inconvenience you may have been experiencing, but unfortunately, no, this is not possible. While you can switch country codes and download apps from another country, allow me to warn you that it'll wipe all current apps for your current country and all the settings for them. Also, the servers that provide the content to that particular country's app won't provide you content because they can tell which country you're actually in.
Again, I'm sorry, but that's how the technology is designed to work. If I wasn't clear, just let me know, and I'll clarify.
-- HD Tech
Does anyone know if it is possible to access country specific content in say the US or Rep of Ireland from the UK on Samsung Smart TV's? I need to test an app as if I was in one of those countries...