Move the cursor to Tuner, Satellite, or Transponder, press select and a menu will popup to select an option.
I just changed all 3 by going over one click and then selecting which one I want to change and then click on it. For example, I bring up Dish screen on Diagnostics. Next I arrow right and it brings me to Tuner. Now I arrow down and it brings me to Satellite. Once there I press Select and I get a drop down that allows me to change Satellites. So, If I am at 119 Inarrow up twice and it brings me to 110. Then I press Select again and I am on 110....
Must be a CUI glitch. After a reboot it went away. Now the menu is populated with satellite lists.
Have you tried doing a 'Test Installation' or switch test?