[MarkA]

Yes, you will need two cables from your multiswitch, Steve is correct. To clarify for you, the multiswitch is a device that switches between satellites and distributes the LNBF (Low Noise Block-down converter with integrated Feedhorn) outputs to each receiver. You may not have a multiswitch, if you have a DISH Twin or Quad LNBF. In this case you will have an integratedswitch. The most tuners you can connect is two to the Twin and four to the Quad. The Twins are VERY common. In this case (a Twin LNBF) you could only have one receiver - the 721, without an LNBF upgrade (to normal LNBFs or DISHPro LNBFs, plus an additional switch)