As per my experience I m going to share my views on tata sky and airtel digital tv. I m currently using tata sky and I am very much satisfied with its service and I also have used airtel digital tv and I was not too pleased with it. Both the digital tv have their own brand value in market. I found tata sky comparatively cheap in terms of prices of plans on it. Tata sky allows anyone to select the particular channels you live to watch but airtel makes to choose the plans among their different plans. Tata sky have a very strong signal support and rain also can not interrupt it, on the other side signal strength is not good in airtel it gets interrupted in the rainy weather. I would suggest you to surely get an tata sky connection without any doubt.