PVR problem on Ubuntu 16.04

Hello to the community. I am a fresh new member and i just installed Kodi 17 Kripton on my Ubuntu 16.04 using the terminal.
I installed kodi successfully and then i tried to install a pvr add-on. I typed
sudo apt-get install kodi-pvr-mythtv and installed it.
After i run again kodi and chose tv but i get again the message to install a pvr . What’s the problem ? Did i forget to do something else ?
Hope someone will help me! Thanks a lot!