I am using tatasky HD+ and it offers no problem.if you have any issue just ring to CC and they will get back to you in 2-3 hrs and they don’t charge 125 but only 30 Rs. HD quality is the best of all. Videocon and airtel suck. If you want to see HD, go only for tata sky and nothing else and recording facility is awesome.
I have recorded till now about 20 hrs of recording still hard disc is 91% free. Some VODs are free to download and connection comes with a HDMI cable which gives you a crystal clear Dolby surround sound and awesome picture clarity. Hurray for tata sky..
And most importantly, airtel uses local satellites to send signals which are outdated in terms of hardware but tata sky uses latest ones., go for tata sky.