The 4K TV sets are now available for purchase at most major TV manufacturers. There is a mass amount of technology to become knowledgeable about when it comes to the 4K TV. In this guide, we'll cover what you need to know about the 4K TV. We will look at, what is OLED, High-Dynamic Range and Quantum Dot among other things. When you are finished reading this guide you will know all you need to know to assist you in buying or understanding your 4K TV.