I cannot watch TV because my system keeps restarting to the roku home screen. I have unplugged it, re-initialized it, rebooted the router, changed to a different HDMI port and checked for updates with no luck! Now what? This is 1 of 2 newer units in the house.
Some random thoughts:
Does this happen on any particular channels, or does it make no difference what channel you're on?
Any chance that the Home button on your remote is stuck in a partially depressed condition that is making intermittent contact?
Also you can remove the batteries from the remote for a while and see if the problem keeps happening. This should help narrow down whether the problem is in the Roku unit itself, or just the remote.