If you enable the Hijack screen blanker, then this also enables the auto-shutdown feature. The screen blanker will fire once the playlist stops, and the auto shut-off feature kicks in 30 minutes after that. Tunable in config.ini with "standby_minutes=30".

Or what I do, is just use the "countdown timer". Quick and easy to set, either with the menu, or the '4' button on the RioRemote.

-ml