TATA SKY is similar to dishtv and provides a decent service, the customer care team is very prompt and connects easily. to add or uninstall any channel you need to call customer care and they will take your request accordingly. the packages comes in yearly and monthly basis so you can pick what suits your requirement. It also provide HD channels package. To install the TATA SKY you can walk in to your local market retailer or just call to customer care and they will arrange the tech visit to your premises. Installation takes max 1 hour and it depends on the signal availability in your area. The quality of picture is clear and in HD package its even better. I have been using the TATA SKY services from 2 years and it’s absolutely value for money.even in interior areas the signal strength is very good.