I have 3 2700 Dish network ird's and a 500 dish non pro picking up satellites 119 + 110 with a sw44 switch. What I want to do is be able to also pick up satellite location 121. What do I need to do this. I have a dish 300 kicking around but not sure what switches and things that I need to hook them all up to be able to view a 3 satellites. Please help if you know how to do this. Thanks.