Appreciate any input on this. Since the new Mpeg 4 HD channels were introduced I have been having issues with them dropping of for no apparent reason. They will go out for 30 min and then back on for 15 min. Then off for 10…and so on.Sometimes off an on all day. Very annoying. I have had numerous techs out, but since this is an intermittent problem they can only guess at the cause if the condition does not present itself when they are here. Today the skis are clear and there is no wind. The HD channels just went out again and back on. I took the images below at 10:36 when they were on. Back out again at 10:51 And at 10:57 they start coming back right before my eyes.