Maybe someone here knows why this is happening. I have 2 HR21-700s, one connected to a Samsung LCD and another to an older Sony LCD Projection TV. Both TVs are widescreen and both TVs have the exact dvr settings. When watching a 4x3 video back on one of the receivers it leaves it in 4x3 mode and puts the black bars left and right (this is on the Samsung), however on the other receiver it stretches the video. I have tried various things but cannot keep it from stretching. The stretching is happening on the older TV but the picture mode on the TV is in "full" and I cannot change it because the source from the DVR is a full widescreen picture. I just find it weird that it works without stretching on one but not the other. Does anyone have any ideas?