Satelite TV?

[Huck]

My MS came with the automatic satelite dish on the roof.

My question is:
How do you wire in the outside satelite connection and the dome satelite at the same time?

I noticed that the end of the wire from the outside satelite hookup is not hooked up to anything in the ent. center.

Do I need to put an A/B switch in the cabnet in order to use a portable dish out side the MS?

All help is appreciated..thanks

P.S. I also have a TiVo DVR and satelite switch signal splitter wired into the ent. center so I can have two leads to the DVR and one to the bedroom so we can watch separate programing on the bedroom tv. I also have an A/B for the bedroom TV. So I can switch between satelite and cable,dvd,antenna,vcr,tivo,,ect.