gibbsjf53 said:
You should have the four lines from the dish run to a multiswitch, then to the receivers.
If you have the 3lnb dish with the built-in multiswitch, then all you need to do, is run each coax from the dish to each receivers sattelite input, so if you have a DVR with dual tuners, 2 coax would go from the dish to that one DVR.
If you have need of more than 4 outputs, a second multiswitch is needed, in which case you will need to make sure the multiswitch is cascadable, or else it will not work as expected*.
*Note that if you have a 3lnb dish with a built-in multiswitch, and you connect a non-cascadable multiswitch to its built-in multiswitch outputs, you will only see one sattelite I beleive.
If you are using a 2lnb dish with the 3rd lnb being the Sat-C kit that you had to add on, it would not have the built-in multiswitch and you can use a non-cascadable multiswitch to distribute to each tuner/receiver.
Oh and if you are going from a 1 or 2 lnb setup to the 3lnb, you will need to rerun installation setup again and select 3lnb/oval dish, in fact, even if you did not move from a 1 or 2 lnb, it might be a good idea to make sure your receiver is set to 3lnb/oval setup, else you will only see 101.
And to clarify, directv does not have to do anything on their end for you to see all 3 sats.