SHIELD TV will automatically go to sleep after the time period:

1. On the SHIELD TV Home screen, select Settings > Device Preferences > Screen saver.
2. Select When to start.
3. Select one of the options.

To restart:

1. On the SHIELD TV settings, select "Restart"
2. If this is unsuccessful, you can also unplug the power cord, wait 10 seconds, and then plug the power cord back in.