@Mazhar : The pakistani channels like Apna TV, Silver screen, Starlite are on Global beam, which needs minimum 210 cm dish to catch signals properly. My solid hd s2 2100 receiver scanned those channels first and i was getting around total of 285 channels (both Regional and Global beam combined).
But in order to increase the signal strength of regional beam i had done LNB skew and i got 90% signal intensity and 70% signal quality on almost all channels of the regional beam, but due to lnb skew, i missed out the global beam channels next time i did blind scan again on my STB.