Cutting the cable, lets talk options and media setups

The Nvidia Shield TV does 4k via Netflix if you want to take advantage of your TV.

I've used Kodi on multiple devices.

Nvidia Shield is the best so far.

Raspberry Pi 2 is next and I'd anticipate that the Pi 3 is better.

Kodi on Windows 7 and 10 work well depending on the hardware.

Kodi on an old laptop running Lubuntu also worked well.

Kodi on my Android phone works great.

I recommend a service such as real debrid if you use any of the "unsupported" streaming apps. Keep in mind that they will ban you if you connect from multiple I.P. addresses so activating it on a laptop or phone could be problematic. Wireless works but, due to packet loss, even the best wireless isn't as good as ethernet.

I recommend an antenna to get local channels so that you can watch local content.