Amazon's Fire TV Omni mini-LED TVs have a light sensor that auto-adjusts picture quality based on Ambient light. (Image source: Amazon) Amazon has announced new models for its Omni line of smart TVs. What makes these new TVs special is that they are the first models in the Omni line to use mini-LED technology. They also have features that make them great for gaming. The new Fire TV Omni Mini-LED series has a QLED mini-LED display with a peak brightness of up to 1,400 nits and up to 1,344 dimming zones. Amazon says the TVs also have suppo...