Yes you can change your TVs country region and download the app, then switch back. Most likely just a North American release for the first while. Try changing to US or Canada to download the app.
Thanks it is available in the UK gb store
and I have added it to my account now
My interest is in Poland where I have a holiday home with an LG Smart TV. Will switch countries and get it from UK if it does not automatically pick up when signing to my account
I see the store says dependency on internet. Could we establish if it stops if internet connection is pulled down when server and LG are on the same network and internet made available on initial connection to plex.tv - presumably needed to confirm PlexPASS subscription - but would be good if it does not need to continuously check