Coreelec is currently using the Amlogic 4.9 Linux vendor kernel. It normally uses the aarch64, but to my surprise this doesn't work with the hdhomerun PVR unofficial build, but the hdhomerun PVR armhf as timstephens24 found out (above) works perfectly on it, so thats what I am currently using. Coreelec is an alternate boot OS for the Android box and I know I could use the Android app if I boot into the primary Android but It is a pain to go back and forth since I use Coreelec on 3 boxes and am trying to have a seamless solution.
When I do this is doesn't connect. I have tried the IP and the IP:8089 and same result. When I use auto it says it is connected and "Channels DVR backend" in settings>system info, but shows channels:0 and recordings:0 and the guide doesn't load anything and is empty info. The hdhomerun PVR armhf version loads immed when I have it installed(i don't have the hdhomerun DVR just local channels). I do have "get channels from backend" ON, and I am not trying with both backends installed as I uninstall them as I am trying to troubleshoot.

