Prevent TV from overheating by placing in an area with good ventilation. Do not block ventilation holes on the TV. Position the TV so air can circulate freely on all sides. Do not stack objects on the TV. If you place the TV on a stand, make sure you allow adequate ventilation.
Select RESET ALL PARENTAL LOCKS, and then press OK. Select RESET ALL PARENTAL CONTROLS. Press OK. A message appears asking if you want to reset the 4 digit PIN and stop using parental locks. Select RESET and press OK. The set-top box closes the Parental Locking Settings screen and returns to the last channel tuned.