Any ideas why neither of my Roku's (3 and Express) will connect to this, although it is touted as 'included with Prime'? I can set it up on my Watch List - and view it - on my PC, but it doesn't appear on the Roku which is on the same WiFi network - there appears to be some sort of issue with the 'Prime Video' app. I've done the obvious things like removing and reinstalling the channel, deregistering and reregistering the device. Searching for 'fever-tree championships' brings up a white blob and hangs the device, rather than a message that it is not found or not available. If Amazon are busy buying up TV sports rights, people need to be able to view them on a TV, not just a tablet or phone.