The Nvidia Shield is an awesome gaming system, but a mediocre set-top box. It’s able to deliver stunning 4k content to your living room TV without breaking a sweat, but is ultimately limited by Android TV’s lack of native apps and penchant for paid content.This is the world’s first-ever 4k Android TV set-top box, and the first widely offered streaming device that’s capable of handling Ultra hd. That means, unlike the Roku 3, Chromecast or even Amazon Fire TV, you can actually connect this to a 4K TV in your home, throw on Netflix, HBO Now or YouTube, and be treated to stunning 3, 840 x 2, 160 resolution content.Where the Shield Portable failed to capture the Nintendo 3DS’s spot in our pockets and the Shield Tablet a spot in our bags, the Nvidia Shield is attempting in earnest to claim a space beneath our TVs.The Shield also comes with a single controller that looks, at a distance, almost like a mix of the Xbox One and PS4’s gamepads. It has two in-line control sticks, four face buttons(A, B, X and Y), two sets of shoulder buttons and a directional pad.