For proof, better visit the persons house who is complaining and see for yourself
.Posting pictures wont help when you want to take sides on picture quality.
For example, When a person says he gets good dd audio on a particular dth, how do you ask for proof. Record in mobile and post it?
When you have sony , samsung, micromax tv, why do people prefrer sony? Its due to the natural colour reproduction. Some people can recognize it and buy sony and some people dont recognize and they opt for other brands. Same way some people who have a kneen eye for detail can recognize the short comings of tatasky hd pic quality.
Its clearly evident due to space crunch, tata sky is compressing the pix quality in hd way more than expected.
Note: I am seing these issues on 46 inch tv. Maybe the issue is seen on big screen tv's. Maybe tatasky thought indians buy only 40 inch tv so they can hide their defects.