I have Hauppage HVR-1265 tuners that Emby does not recognize on my Windows 10 system. I subsequently read that Emby requires a separate installation of WinTV 8.5 to recognize those tuners, but that future versions of Emby may not need WinTV. Does the most recent beta version of Emby still require WinTV to recognize Hauppage tuners? I would rather not pay for WinTV.
You may want to give this a try as I think you'll like this setup a lot better. Requires Emby Server 4.7.
Download and install the latest beta server version if 4.7 isn't released yet (at time of reading)
Install and setup NextPVR (same or different machine).
Configure NextPVR for your tuner and remote access. No need to add guide data if the only use is Emby.
Install NextPVR plugin from the catalog and configure it to access NextPVR (easy).
Add Emby Guide Data then verify channel