Sony KDL-60W850B - Manual (Page 209)

Demonstration mode appears in the screen.
Press the OPTIONS button on the remote control and select [Suspend
Demo]. Then, press the HOME button on the remote control and proceed
with the [Initial Setup] from the [Settings] - [Preferences] menu.
A notification appears and hides subtitles or other
information.
Set not to display notifications. Press the HOME button, then select
[Settings] → [Preferences] → [Notification Settings].
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