FYI the app crashes on each attempt at liveTV, Recording TV, etc. on the N1000. The menu is about all that works on this device.
We’ve tested and confirmed the latest generation of Rokus, including the Roku 1, 2, 3 and the HDMI stick (though the WiFi antenna on it can be flaky) - for other models, we’re still trying to get of a hold of a few, but it can prove difficult with the older generations of the Roku.
Your particular model, the N1000, doesn’t have enough channel memory to accept a full stream from the Tablo - sorry 