Switched from DTV to HD Dishnet today, TV 1 on 722 Receiver has a great picture but bedroom tv on the whole house 2nd tv port is unwatchable. With the Direct TV the picture wasn't the greatest but watchable. The installer set 2nd TV for air channel 60. Can I add an amp somewhere and what type. Upstairs TV is a Samsung 1080p less than a year old. May have to switch back to Direct TV tommorrow, Thanks for a great site