The hilarious part about this that no one has mentioned is that Samsung TVs will not output 5.1 sound when watching video through an app. So, the HBOGO app being able to provide 5.1 audio to the TV is pointless.
AND, the Xbox program seems to still not support 5.1 audio, so, in the end, I have no way of using HBO GO with 5.1 audio!
So, 2 of the 3 devices that HBO GO supports can't take advantage of the 5.1 audio! What a joke.