Samsung TV E-Manual page 634

(unavailable).
The Channel
when you select the TV source.
Your settings are lost after 30 minutes or
every time the TV is turned off.
If the TV is in the
it will reset audio and picture settings
every 30 minutes. Change the settings
from
mode using the
TV in
menu is only available
Store Demo
Source using your remote, and
Store Demo
mode to
Setup procedure. Select
Meijer.com
mode,
Home Use