Hello everyone, I've been surfing for a definitive answer to a problem I've got. I hope someone here can help, and apologize if mine is a recurring question. A DirecTV installer was at my house last week to install a Phase III dish so I could finally take advantage of my Zenith 520 HD receiver and soon-to-arrive local channels. At first glance, my Zenith and two other standard definition receivers were working fine. However, once the installer left I noticed that it was not possible to obtain a signal on all three receivers on both odd and even transponders at the same time if I tried to change the channel(transponder) on any individual receiver. I went up on the roof and noticed that the replacement multiswitch (3x4) the installer provided had only two connections from the dish. A third input connection came from the off-air, roof-mounted antenna. Three lines from the multiswitch ran to each of my three receivers. My question is this. Should there be 4 lines running from the integrated multiswitch on the Phase III dish plugged into a 5x8 multiswitch to correct my problem? Thanks for any help.