yes muralibeer,I Too opened a TOPIC ON THIS CALLED PIXELATION FOR EVERY 30 TO 60 SECONDS,this problem is coming from the recent software update,i am also getting this problem.It is not signal problem,it is the software problem,i am getting 98% signal,i called customer care they too told that due to that software update,this problem is coming and this problem will be rectified soon when opentv software is updated.So till that update is done,u have to bare this problem or take another dth