I think it depends which one you take, how open they are for external software. But with Firesticks or cubes you can do 100%. With others it might be worth googling beforehand, if Stremio can be installed on that specific tv box you choose. On those boxes you just need Stremio as an app. The app on your box then syncs with the settings and addons you have in the desktop version, so no hassle.