Mitsubishi WD52527 52" Projection HDTV "time warner cable audio video" Questions

...Time Warner Cable with an HD-DVR. There is an option in the audio setup menu that will switch the audio from composite/digital to HDMI. I found this as I tested composite cables to fix a video issue ...

...Time Warner) but it is not connected to the cable box. This set is in a bedroom. I still had the audio signal. That was not interrupted at all. When I thought the input may have been changed for some ...

...Time Warner Cable. The other inputs on the tv however don't seem to work. I can't use my DVD or hook up any game systems through the various inputs. In addition, while the HD channels (1000 and up) ...