https://www.desidime.com/discussions/sideload-netflix-in-android-tv?page=1#post_8626210
avgn
Link Copied
https://www.apkmirror.com/apk/netflix-inc/netfl...
This means your TV isn't certified by Netflix. Even if you manage to sideload it, screen resolution will be limited to SD/480p
Find the android version of your tv and use an older netflix version compatible with the android version, from the link (apk mirror) shared above.
get a cheap firetv stick lite during sales.