How to turn off ACR on your TV (and why it greatly enhances your viewing experience)
Kerry Wan/ZDNET Did you know that whenever you turn on your smart TV, you invite an unseen guest to watch it with you? These days, most popular TV models utilize automatic content recognition (ACR), a form of ad surveillance technology that gathers information about everything you watch and transmits it to a centralized database. Manufacturers then use your data to identify your viewing preferences, enabling them to deliver highly targeted ads. Also: Your TV's USB port is seriously underutili