conecting 2 boxes with 1 dish ??

[nelgo123]

I have a dreambox 600 and I am thinking a new box probably the 800HD for my new TV.
no motor.

What exactly do I need to change to be able to use the 2 boxes indipendently?
many thanks

[qurdina]

All you can do is fix a dual lnb (two outlets) and you can watch a different transponder on the same sat.