SOURCE: I bought a Sharp 52" LCD stuck in demo mode
Hi jmartinezua,
Here is how you fix this:
Go to menu--> setup --> reset
This will reset your TV to factory settings. The Demo Mode will cease.
JJ
SOURCE: Can't get Samsung un40c5000 out
try this: Press the volume button on the T. When the on screen display come up, press and hold the MENU button for 5 seconds.
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