My TV1 works fine, no audio problems. I have 3 other televisions connected to TV2 and all of the televisions on TV2 are experiencing continual cracking audio, very difficult to hear the program. I have checked all of the inside connections and they are fine. Are there any connections on the outside of the house that are dedicated solely to TV2 audio? Reboot does not help. Shared view does not help. Could it be the 622 itself that is bad?