Would be nice to be able to navigate via Smartphones through the Library and choose movies episodes or even music there instead of browsing via often very slow TV interfaces.
I hope this is understandable English and not yet asked.
See the support page regarding plex companion
https://support.plex.tv/hc/en-us/articles/201165546-Overview
have found my Problem:
Unsupported Apps:
Samsung Smart Hub
pretty bad that we have 3 of them in our household 
best option (and cheapest) would be to switch to chromecast or firetv
Early 2021 clean-up: implemented
