The best 4k TV that we've tested so far is the LG CX. Like any OLED TV, it doesn't have a backlight as it turns off individual pixels, producing perfect blacks. This is ideal for watching movies in a dark room, and it also has very wide viewing angles, great for when you want to watch TV with the entire family.

It's an outstanding choice for gaming. It has a near-instant response time, resulting in fast-moving content that has minimal motion blur. It has a 120Hz refresh rate and supports FreeSync variable refresh rate (VRR) technology that can match its refresh rate to your game's frame rate, reducing screen tearing. It has four HDMI 2.1 inputs, making it future-proof, and the built-in operating system is LG's WebOS, which is easy-to-use, and the app store has a great selection of apps available to download. It has good built-in speakers, so you won't necessarily need to add a soundbar.

Unfortunately, like any OLED, it has the risk of permanent burn-in, which is only a real problem with constant static elements, like if you watch the news all day. Due to this issue, it doesn't get very bright. Still, it has outstanding reflection handling, and HDR content looks great due to its excellent wide color gamut. Overall, it produces an outstanding picture quality, making it the best 4k TV that we've tested so far.