Yes, you need to. It will be good to the heat dissipation of the appliances this way! And the visual effect is better this way too.
Yes, you need to. The film is mainly used to protect the display or other equipments during transportation and selling. It's useless when you use the aplliances. In addition, if you don't tear the films off when you use the appliances, they will not only affect the diaplay but also possibly emit hazardous substances.
The protective film on TV screen must be torn off. The film does not only affect the visual effect but also affect the heat dissipation of the TV. If the temperature of household appliances is too high, their life will be severely affected.
