In the past I was receiving 4 NASA channels on 72.0W on C Band on my Mesh Dish and have noticed many posts lately re NASA now is on 87.0W. On "The List" the content looks very similar but it looks like AC3 is required for the NASA channels on 87.0W? If that is the case then since my Sat Receiver is NOT AC3 capable then I would not be able to hear these channels on 87.0W, and likewise be wasting my time scanning them in. Can anyone confirm that I would need an AC3 capable Sat Receiver to hear the NASA channels on 87.0W?