Have not heard very good about Tata sky either .But I cant comment on it as I am not using it.But as far as Dish TV is concerned the experience is quite bitter.Whenever there is a weather problem (it has rained a lot this year) there are no signals.
Something always happens to the DishTv alignment (as they call it) and you can not watch anything on your tv screen except call customer care or your set top box is not properly connected.Now when you try to contact customer care which only takes one and half hour to connect and just about 50 minutes(minimum) to connect to their customer care executive (after "your call is important to us please be on line" thing) you are given a complaint number with a note that the problem will be sorted out within 24 to 48 hours.And very obviously it is not sorted out.
Then you repeat the process.Your problem will be sorted out after a lot of persuasion by patiently contacting the customer care.The problem will recur again anytime the engineer who has sorted the problem walks out of your house.
Complaining via its website does not work either.As soon as you submit it gives you an error.
They only show you a page to enter the complaint .You write all your problem and submit and bingo it directs to "Page can not be displayed".No matter how many times you try.
With in a month of getting it installed I am fed up of it.Shall advice not to go for this Dish TV thing unless you want to test your patience.
The only positive thing is you will somewhat cut down on your electricity bill whatever is consumed on TV as your television is mostly off.