My opinion & conclusion
without signal loss you got better picture quality on All dth up 43" TV's.
Size,resolution & panel quality of your Tv also consider for better picture quality.
55&above the TV size not suitable for DTH
Actually I have muti tv's in My Home ..and am Used All Dth s
Finally am Concluded.. and We r Campare Only 3 Dth s in according to Present Campitative
Tata Sky,Airtel Dth,SUN Dth
Tata Sky HD+ is Excellent HD& SD pQ&AQ
And SUN Dth is Best Choice for Their Cheeper Packages Best HD PQ and Airtel Pq is Better than TS HD normal Stb .!!!!