Any specific reason you don’t want something mainstream? I would recommend a Nvidia Shield (tube). I have one for my living room tv and another for my bedroom and they are great. I also have a shield pro for my theatre room. I used to have a htpc in there but it would occasionally break on updates and wasn’t nearly as user friendly as the shield

I always thought these were pretty cool. I’m not sure how HEV compares to UV though, or if it even works