Tried power cycling for a couple minutes and for 24hrs still no results
Have you contacted Philips?
Where to get support for your Roku TV™ | Official Roku Support
Tv has went black 3 times in the past while in use. This last time I was losing on Xbox and black stretched from the left to the right side of the screen and will not bring the picture back. When it happened before I would unplug it for a couple minutes and it would correct itself. This last time I’ve left it unplugged for 24hrs and still no results
Have you contacted Philips?
Where to get support for your Roku TV™ | Official Roku Support