John bought a Samsung QLED 4K TV. Does he really need to get a Blu-ray player for it? All he really watches is Netflix and it's pretty good. Leo says that streaming gets compressed, so even though it looks pretty good, Blu-ray is uncompressed and will look far better. The way he can tell is by looking for "macro blocking." He'll see it in solid blacks, and it'll show bands, instead of a smooth gradient. He'll also see some jaggies in titles and text. But Leo says in spite of that, Netflix does a good job. It just depends on if he wants the perfect image or not.