Maybe a dumb question, but how do I get my Roku 3930x to stop taking over my TV without unplugging it? Here’s what’s happening: I’m done using the roku and want to switch back to my cable box. So I scroll through the source/input options and move from Roku to cable. The cable feed displays until I use the cable remote to change the channel/pull up guide/search...as soon as I try to use any of those it goes back to the Roku input/source/home screen. The only work around I’ve found is to unplug the Roku power. Is there a way to power down the Roku without unplugging? Or am I missing something else?