About a month ago I had direct TV installed in my home, Ive had satellite for 15 years, back and forth. Any way since installing I wanted to add another dvr. I purchased a used one I know worked, I purchased a new card for it drom direct TV , upon activating it they determined it wouldn't work with my system, so I decided to put it in my rv and use an old dish , they said OK it should work. I have TV but am unable to record. Am I doing something wrong Thanks Don