Get A Good TV
Since you’re going to look at your screen a lot, you might as well optimize it for gaming. Make sure the setting is the in-game model. Adjust the brightness, color saturation, warmth, tone, and more. Since you’ll stare at it for a long period of time, it should be at least comfortable to the eyes.
The size should also cater to your needs. There’s no need to buy a 50-inch version if you’re only going to play mild games like Minecraft.