I turned on 5.1 and noticed something frustrating.
Prob1 The thumbnails of a recorded show when you fast forward do not sync with what I am watching.
Prob2 I have a high end surround system powered by a Denon receiver. I enjoy listening to 7.1 surround discs. It’s almost as good as going to a theater.
I do not hear much difference when the Tablo 5.1 is turned on. I seems a little fuller but I don’t hear the distinct channel separation. When listening to a broadcast on the TV(also connecdted to the Denon not Tablo/Roku) I get great separation of the audio channels and great sound quality.