Roku 4670X hooked to a Samsung TV. Set the Roku to the Home Screen and press the power button on the remote. TV goes out. Next morning press the power botton on the remote. TV screen opens up. I have the Red Clock as my screensaver. The clock has stopped. Normally it counts the seconds and noves around the screen. Yep, the clock is frozen. The time is random. It is not the time that the Roku checks for updates. Some days the clock is acting normal. Some days it is frozen. I press the Home button on the remote and the Home Screen pops up. I hate intermittent issues. Anyone have any idea what is going on?