I can be in the middle of watching a movie on Netflix or Kodi, and my TV and shield will randomly (haven't checked yet to see if it happens at a particular time) turn off. I assume it's going to sleep because when I turn it back on it doesn't go through the entire startup as far as I can tell. I have had to enable developer options and completely disable sleep. Is this a common issue and what could be causing it? I have not seen much about it in a recent Google search.