I am using tata sky hd since 2013. its picture quality is much better. I am watching tata sky hd on my 42 inch LED but on big screen quality is very clear. if you used tata sky hd then you got doubly digital sound. you can easily feel it. and if talk about service I tell you, I bought this service around 12 or 1 pm and I was watching show with my family in evening. that kind of service. very fast.
yes HD pack is little costly but when you quality with sound you will compromise with money.