I spoke with a rep from dish network and he told me that comcasts hd channels were all upconverted and that they were not true hd. Is this true or not. Is hd the same regardless of who you go with as far as a provider? I was under the impression that all hd channels had to be filmed with hd cameras and this was the only means of doing so. Please educate me on this matter. Thanks in advance!
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