Need help setting up an OTA antenna to kodi 17

Noob here, but learning…

Im running kodi 17 on a nvidia shield. I have an OTA antenna i want to hook up to kodi to be able to view and record channels from it using kodi PVR and EPG. I have looked at the wiki for how to do this, but I’m still confused on the backend server part. Do i need additional hardware to accomplish this? Does my nvidia not have a tuner card? I’ve created my own kodi build and this is the last piece in my puzzle so it’s super frustrating to not be able to figure this out. Any guidance would be very much appreciated.