[Atreyu]

Kodi does not handle tuners directly. You will need a backend solution.
Afaik there’s no pvr backend that can run on the xbox.

Another option would be to install one of the available pvr (wiki) backends on a lightweight separate machine like a rpi or other.

Tvheadend is widely used for linux solutions, but there are many others to try.

Read up on kodi&pvr and dont hestitate to post any questions here.