I have had personal success many times with installing unofficial android Apps. I am not in US, but I think it has an android App?
you can download the current .apk file (browser extensions or create from another android device: all free) and put it on a USB memory pen. Then load the .apk file & it should install after changing the security settings. It may work (but not auto-update).
You would also also need a sideload launcher app and something to set the screen orientation to landscape (all free). Also the TV remote may not be good enough & you need to use a mouse/phone.