I have a VIP 622 used in dual mode. I used channel locks to remove the music, shopping and some other channels from the guides. I did this on tv1 and all went well. I thought the change would apply to tv2 also, but it did not. So, I went through the same selecting and locking procedure on tv2. It does not work on tv2. I checked the manual and found nothing helpful. Am I missing something or is this just the way things are?