How to Setup Your Xbox One
It is for the most part exactly what you would expect; power, power brick, ethernet and the Kinect; the only difference this time is the HDMI in and HDMI out. If you are just going from your Xbox directly to your TV, use the HDMI out. If you are going from your cable box, through your Xbox, then to your TV, use HDMI in coming from the cable box and HDMI out to your TV.
Other than that it's very simple. I feel the set up in general went more smoothly than the PS4. Not by much, but slightly smoother.