What happens if I perform Factory Reset in Samsung H Series TV?

When you perform a Factory Reset in your Samsung H series TV, all your settings revert to factory defaults. These settings include all picture and sound settings, all channel menu settings including memorized channels, all clock and timer settings, and any other settings you made through the menu.

In addition, if you had your TV professionally calibrated, you may lose the calibration settings if the calibration was not done through the service menu.