The TV worked fine for months, but now it keeps turning itself off. I've tried the following, all to no avail:
Nothing works.
I am having the same issue. I want the tv to stay on a app/channel for a good 8 hours with out touching the remote. I unchecked all the power saving setting but it still goes to the home screen after a few hours.
UPDATE:
I think I've narrowed down what the problem is, and it is not with my Roku TV. This is what I did: