Apple TV 4th Generation
Apple TV has definitely come into its own as an effective option for digital media. It's small, sleek, and easy to set up with support for Wi-Fi and an Ethernet connection if you need to have it as part of a physical network. It comes with a slick rechargeable remote which integrates an accelerometer and Siri voice-search functionality. Some digital media players have buttons dedicated to commonly used channels, but the Apple Remote forgoes such features for a streamlined appearance and touch surface instead.
You get 1080p HD video quality with Apple TV, but it lacks 4K Ultra HD support. However, unless you have a 4K HDTV and access to streaming 4K media, then it is not a major concern at this point (at least until 4K HDTV becomes more widely available). While the Apple TV 4th Generation includes access to a lot of streaming services, it also includes numerous games and entertainment options through the Apple app store.