Mi Box is designed to transform any non-smart TV into a smart TV. Now, this doesn’t mean the Mi Box can make your “dumb” flatscreen TV smarter than it is.Your TV must be somewhat smart to be able to support the Mi Box. You need to have an HD with a high-speed HDMI input to use the Mi Box 4K.On Mi Box, you’re on you have access to content across apps that support it, like Netflix, Vudu, YouTube, UltraFlix, and Sony’s Ultra streaming service.