My system info: Tivo Brand Series 2 Software: 8.3-01-2-140 Cable box JVC TV Everything has worked fine for 5 years. I have lifetime service. Suddenly (right in time for all the new premiers) I have no sound on my TIVO input. That includes sound effects on the tivo itself, sound for watching live tv, and watching recorded programs. I checked and switched out all the wires. They are all fine. Am I screwed?