This will be my 5th replacement if it is going bad, I think. On live tv it just will freeze for 30seconds to a minute. While using DVR I have to fast forward and then go back. Sometimes it happens over and over, other times not. I have done a few resets both by the button on the unit and unplugging for 10 minutes, but it does not stop. Did we get a bad download or is my receiver going out again, any ideas??