Can this box recieve signal from all 4 of my sats? 4 being A, B, C, and 72.5 for locals? For some reason its only getting A B and C. Can anyone help?

Why did I bother? With what you ask. Why did I bother taking my time and spending my money to make sure I have everything running through surge protectors/suppressors, making sure everything was grounded and totally protected. Woke up this morning to find out not 1 but BOTH of my HD boxes were...