Why ? If they charge a high premium it should be good enough to cover expenses and still make a huge profit isent it ?? They will not relay these channels free of cost and plus not everyone will subscribe to them .. Infact majority of people are still watching matches on SD hence the bombardment of adverts are there .. Once HD subscriber base rises then similar adverts will start on HD as well they will not care what TRAI regulations are or quality of viewerships and that is where Sports HD Ad free channels at a premium will come in demand ...