A sub $20 Android TV Box? Seriously? Yes, Tanix TX3 Mini L TV Box is the one that you can grab at $16.99 at GearBest now. It is powered by Amlogic S905W Quad Core 2.0GHz CPU and Mali-450 penta-core, up to 750MHz+ GPU. Perfect for 4K movie with H.265 video codec support. Comes with 2GB RAM + 16GB ROM that good enough for starter. Running smooth and fast Android 7.1 operating system. In short, it is a great budget Android box to turn your dumb TV into a smart one…