When I select the TV input on my Toshiba TW65X81, I don't get any audio output. There is nothing coming from the audio out jacks and there is no sound from the tv speakers. The audio is working correctly for every other input, so that should rule out any audio cable problems. The only thing I can think of is a problem with the audio circuitry (well, duh!). I'm guessing the audio circuitry involved is different for the tv input since the tv doesn't actually have to generate the audio output for any of the other inputs. Any ideas or suggestions before I call the repair man?