We have both Airtel and TS, not able to find any significant difference between PQ of both, but Airtel's Audio is excellent for me, so we continued recharging only Airtel.
If you're concerned about a specific TS stb, then you must post which model stb u have, maybe members could help you more.
Is picture quality and Audio quality about the Settop box ? isn't about the transmission quality? I am using sundirect. I see better quality video and audio in some SD channels and worser in other. Settop box is just decoding the signal. Only bandwidth used and decoding algorithm matters. I think HEVC decoding with good bandwidth allocated and better quality to start with is the best.
Yes, Dish TV latest set top boxes give very bright PQ as compared to other DTH,any body watching Dish Tv will see a compromise in picture quality if he sifts to other DTH
Yes,Dish TV providing Good PQ on SD channels but I think Dish TV needs some more improvement in HD AQ quality because they are not providing DD on many HD channels.