i had a new 5lnb dish installed on sat. i have noticed that some of my hd channels get pixely and sound distorts for a couple of seconds.my question is,what transponders are the channels on?i was told that the locals and hd channels were on sat 99.i checked it out and i am only getting low 50's on the first transponder and the rest are 74 and above.i have a feeling that my channel 5 and nesn are on that transponder as they seem to be the only ones doing it