In home appliance stores, the 4K HDR TV demo captivates with its dazzling starry sky, showcasing clear, sharp starlight and vibrant colors akin to a painter's palette. The lush greenery of the tropical rainforest and the deep blue expanse of the ocean are mesmerizing. Yet, when consumers bring the same TV home and connect it to a set-top box or open a video app to watch popular online dramas, they often find the picture quality to be significantly diminished.