Are you saying that the format button (#, I think on your Dish remote) has no effect on the display? You would have to use the TV2 remote to change that output.
Not saying that. The button does work but it stretches the picture so much that part of the screen is missing. I don't make any changes when watching a HD channel via TV1 on one on the many TVs.
I had a 722 and I know what of I speak. The TV2 output is SD only and furthermore (in dual mode) restricts the setup so that you cannot, without zooming your TV, show the proper aspect ratio on a widescreen TV. When you do zoom an SD picture with bars, it looks like ca-ca even if the aspect ratio is correct and there are no black bars visible. What Dish never implemented is a TV2 output mode that was formerly called anamorphic widescreen such as that done for widescreen DVDs. The TV2 output can actually do that, but only if you put the 722 in solo mode.
Thank you so much for clarifying, I didn't want to send JOEGR pics of the TV2 screens.