I presently have my ota & dish signals routed through separate amplifiers, then run to a combiner which allows both signals to be routed via a single cable. This cable is then run through a splitter that feeds 4 tvs. Each tv is able to watch the ota or the dish. My problem is that I want to replace my vcr with a dvd recorder that has 2 tuners, instead of 1. To do this I need to replace my 4 way splitter (Radio Shack brand) with a 6 way splitter, so that each tuner can receive/record either signal, but I don't want any signal loss. Radio Shack does not make a 6 way splitter. Who does?