DD Free Dish has undergone some changes that could be causing older set-top boxes to no longer receive certain channels, including educational TV channels because of Change in Technology (MPEG-4 Upgrade): DD Free Dish has upgraded its broadcast technology from MPEG-2 to MPEG-4 for educational TV channels. Older set-top boxes only support MPEG-2 and cannot decode MPEG-4 signals. Now all the
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