I'm quite sure there is info on this forum about this, but I don't think I've been able to find it. I heard somewhere that you can't use as input to a multi-switch the output from ANOTHER multi-switch. If this isn't true, then the question is answered. Example. You have one of those Phase III dishes with the built in multi-switch in it... four outputs. You have two DTIVOS and one HD receiver. If you take the four lines out of the dish and run one to the HD receiver... and the other three to the two DTIVO units, you're still one short. My first "assumption" would prevent taking two of those remaining three lines and running them into a small multi-switch and splitting them to four (two for each DTIVO) correct? How is this problem solved with the feeds coming from the dish ALREADY outputs from a multi-switch? Thanks.