I have just added an HDHomerun to my setup. This is a network tuner, which plugs into VDR with the hdhomerun plugin. VDR picks it up as another ATSC tuner and the same channels.conf works with it as with my ATSC tuners. However, I noticed streamdev doesn't work with it, to either another remote VDR server or VLC. If I turn off the plugin and use the ATSC cards it works again.
Not much in the way of useful log info (Ie, nothing..)
Rob