On October 2, 2016 at 23:05, tomciara said...
Considering that many clients think the system is broken when they start the Apple TV and have a black screen, just leave the thing on and have it never sleep.
This
Although I have found a few of the newest generation that I will swear revert the sleep setting back to the factory setting.
OP - it could be CEC on the tv telling the Apple tv to sleep
