No, if bad then not 720p. Because technically 720p is as good as 1080i. Infact, for sports, especially fast paced sports like football, quality of 720p > 1080i.
BTW pq is good in airtel, so maybe dish tv encoding/decoding problem..
After 3month dish tv fix Star Sports Select HD 1 Picture Quality Now Its Running 1080i Good PQ
[img=500x250]https://i.imgsafe.org/455a5deaac.jpg[/img] original pic link