You must be double minded and thinking that, which operator you would select . so I am here to solve you doubt
TATA SKY is one of the oldest and trusted brand for DTH . Its picture quality is excellent, I have HD set up box, but if you compare HD channels with normal channels, there is only slide difference of picture quality
sound quality is good, if you have home theater then you fill experience like you are in theater .
support service like, if your set up box is not working then if you complain it with few hours, a authorized person would come and solve the problem .
and if you want any changes in plans then you can do it by calling to customer service .
this product is value for money.
I would recommend to buy this, without any hesitation