Question about multiswitch

For Directv

I have an HD DVR and a REGULAR DVR and I'm going to get a REG HD receiver installed tomorrow. I was wondering about what type of multiswitch will be used.

I eventually in the near future want to install a receiver in the bedroom beside of the one that is being installed tomorrow.  So what type of multiswitch will they most likely have to use. I have a multiswitch to install if they are going to use a smaller one than it, I'm trying to save myself some time later on when I want the other tv installed.