Hi,
I have a HD HomeRun Dual that supports both DVB-T and DVB-C.
Plex findes is, so fare no problem. But as input I can only select antenna, and I am on cable.
Under scan I can only select DVB-T options, and no DVB-C. This makes sense as antenna is selected.
But as I mentioned it does support DVB-C so I think Plex is not set-up to have the right data for this product.
If you need furter information please let me know!