Well, I decided to make a deeper shelf so the little shelf underneath would sit out from the wall further. When I completed the larger shelf I had the original left over where to store it, another item in the garage.
Why not attach the larger shelf to the original smaller shelf.
The larger shelf sits out from the wall further and both the DVD player and Satellite box can sit on it, with the TV on the original shelf above. I used the same brackets on the sides to affix to the windows
, their straight brackets with a slight bend. Because the whole combination is heavier, I used 2 braces on the bottom down to the cabinet. I used a thicker aluminum 1"x 1/4".
The new tiered shelf
In the back are 4 brackets, aluminum screwed into the back of the lower shelf and the underneath of the upper shelf.
In the front is one bracket centered, affixed to the underneath of upper shelf and top of the lower shelf.
I couldn't get a good picture of this but it's the straight bracket from the underside of the top shelf to the window frame.
This shows the braces from the underside of the lower shelf to the cabinet. The black box is an A/B box for the option of cable or satellite.