Just purchased a Sharp LC-37DB5U last week. I currently have the TV hooked up via a standard digital cable box. For the first 5 days that I have had this tv, the audio for all channels was stereo. However, today when I got home and turned on the tv I noticed that I could only get mono and I was not able to change the audio mode back to stereo. This is obviously not a hardware issue since I can play DVD's fine with stereo sound through component connections.
Shouldn't I be able to freely change between MONO/STEREO/SAP modes regardless? I would really like to get the sound back to stereo like it was before. I'm not sure what else to try at this point. Please help.