I would have suggested a faulty cable, except that the satellite input is not working either. I would guess that the satellite box has a coax output. That could be one way to try and establish a digital connection.
Unfortunately, I have to go now. I'm sorry that I couldn't be of more help, but I will continue to think of posibilities here. I hope that one of our fellow Audioholics can come up with the magic combination in the meantime.
Good luck.