As I was hunting for a widescreen TV this weekend (and not getting one due to having my credit rejected at every store ) I noticed that very few of them seemed to have headphone jacks. This is kind of an important feature to us since often one of us will be watching while the other sleeps, or works on something, or just doesn't want the distraction. In particular, neither the Sony nor the Panasonic I was considering seemed to have a headphone jack. Why is this? Or are they hidden in the back? Can anyone post which sets have headphone jacks and which ones don't?