after calling dish about my problem with trying to change the "format" on a SD channel they sent another receiver. This is my third as #1 had a remote function problem. After hooking it up and activating, I was really PO'd that it is doing the same thing. So, I called Dish. THREE times to talk to different techs. Came up with ZIP. So far, non have heard of this problem. Let me explain. 1. I land on a "SD" channel. It is "framed" all the way around with a large black border. 2. Hit the "format" button, Upper left corner is window with HD and SD, and the HD is changing choices, [ normal,stretch,partial,etc....] "SD" Nothing. But, for a brief moment when you hit the "format" button, a window appears indicating that "page up button and page down will also format, PAGE DOWN being SD. 3 OK, when I hit "page down" for SD format, the receiver "freezes" Shuts off, then goes into a self hard boot. EVERY TIME. Both receivers. No one knows why, or how to solve it. So, if you have a 211K would you please,please, let me know if yours does the same. I swapped the HDMI and that did NOTHING. Other than this super glich, the rest seems ok. I'd appreciate an answer before I send one of these receivers back. Thanks!