For the Pi-curious, I recommend LibreELEC. It’s “just enough Linux OS to run Kodi” and uses a Kodi plugin to manage said OS. It can be locked into kiosk mode with just the kids’ shows and unlocked for full access.
Also going this route setup a DB somewhere and point all your Pi’s to it instead of it’s default DB. The local one is fine but when they share a single DB all your watched shows sync and you can pause in one room, then resume in another.
For the Pi-curious, I recommend LibreELEC. It’s “just enough Linux OS to run Kodi” and uses a Kodi plugin to manage said OS. It can be locked into kiosk mode with just the kids’ shows and unlocked for full access.
Also going this route setup a DB somewhere and point all your Pi’s to it instead of it’s default DB. The local one is fine but when they share a single DB all your watched shows sync and you can pause in one room, then resume in another.