I have a OTA module with my hopper and it wont let me add more channels to my list. i go to edit the list and click on them and it puts the checkmark on the channel i want then i got over and save it and hit guide and its not there. when i go back in to edit it its there with the check mark but after a while it becomes unchecked but never shows up in the Guide. I have tried to reset the box but it don't make no difference. is there any limitations to the number of channels on each satellite?