I need to replace a three way splitter with a four way. Any recommendations? I must use this approach, because of how the current coax is run through the house.
Shouldn't be a major problem. The splitter needs to be bi-directional, and good to at least 1Ghz. The 1 Ghz is beyond the reach of most splitters the cable companies use. You need it with FiOS because MOCA puts the Ethernet signals in spectrum above the normal TV channels in a cable system.