Hey so I have a Roku tv and I have been woken up in the middle of the night 4 or 5 times now to find my Roku playing random audio from old movies at full blast with the screen black. I'll try every button on the remote when this happens and the screen won't turn and the sound won't stop unless I unplug it. It's very creepy and I'm certain it's not anybody in my house messing with me as everytime it has happened everybody has been fast asleep. Any ideas on why this would happen?