We were required to get new boxes or our HD would not work. We installed new boxes. WHY CAN'T I TURN ON THE TV AND HAVE A PICTURE THAT IS NOT PICK, OR A PICTURE WITH NO SOUND OR A PICK PICTURE WITH SOUND OR I CAN'T CHANGE THE CHANEL. This new box does not work. I had to turn the TV on and off 10 times to get a pictue that is not pick with sound. I am looking to change my service if this is not resolved. Why is this happening????