There are no sanctioned, supported apps to get around geo restrictions. In fact the forum policies here forbid discussion of "getting around" this.
Casting is hit and miss here too. That's why I went with a Roku box but that won't work around geo restrictions.
I have recently purchased the above tv and picture great etc but when I tried to cast Netflix (paid in uk?) it casts the picture onto the tv but only in a small portion of the screen with instructions to 'toggle' for full screen but it will not enlarge the pic' to full screen the same happens to film on etc does anybody know why? Is it because I am in Spain and the telly is spanish? Also can I download uk apps for viewing films etc as the apps on the tv are all in spanish