Any set-top box with plex which can sync videos to local storage?
I'm trying to give my grandfather a way to watch a TV show which he LOVES, but he has no internet access. I have the TV show in mkv video files, but the show is not available on DVD, Bluray, etc.
I know that plenty of iOS and Android phones and tablets allow video files to be synced locally for offline playback.
But are there any set-top boxes or HDMI dongles which can connect directly to a TV for playback from local storage with Plex?
I know that the Amazon Fire TV has a microSD card for storage, but I don't know if it can be used by Plex for syncing videos. Not sure about other devices like a Chromecast or Roku.
Can you help me figure out a way to give my grandfather this TV show? I have thought about authoring a disc, but I don't have a Bluray burner, and using a DVD would mean no HD in a regular DVD player. Plus, from what I've seen authoring discs are a lot of work.
Thanks in advance for any help!