Great picture for HD broadcasts; makes non-HD look only fair in comparison. The picture-in-picture feature is a bit of a dissapointment. It's not as easy to use as my old tube-type Panasonic. It is not possible to switch between the 2 pix with one click, and you have to perform a separate set of steps if you want sound with the secondary pic.Get more detail about Samsung LN37A550 37-Inch 1080p LCD HDTV.