How do I reset my TV to factory default settings?
Press Menu, highlight System and press OK, then highlight Reset & Admin and press OK. Select Reset to Factory Defaults and press OK. If you have set a system PIN, enter it when prompted. The TV will display a confirmation message—highlight Reset and press OK. The TV will turn off and turn back on, then the Setup App will begin. (Page 34)
From the official Vizio Factory TV One manual, page 34
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