My directv/tivo receiver started to get ghostly horizontal lines displayed. Not sure if the unit was going out or if it was the VCR that I added to begin archiving old shows. If unit was going out, I need to archive stuff that we've saved forever. Found VCR to be cumbersome and thought the old VCR caused my picture to be bad, so I changed to DVD recorder. Directv signal via DVD recorder seems more clear, than through VCR, but is also better than the straight signal to the TV. Why would this be the case?