In my core I have a dual ATSC tuner board (HVR-2250) and an analog tuner board (PVR-250).
I have the HVR-2250 also. What did you have to do to get it installed? Mine was not detected so i had to manually enter it in MythTV backend. Did you have to do the same?
Its a bug that is getting worked on in the mythtv plugin that is stopping the cards from getting populated within mythconverge.capturecards