Assume that if you are using HDMI extenders over cat5/6 cable to extend a HDMI to multiple TVs that there is no way of getting around requiring transmitters at each source end, i.e. you can't have a single transmitter through a patch panel feeding multiple recievers at the target TVs.    If this is the case has anyone seen any matrix switches that only require a single cable?  All the ones that I have seen require 2 cat5/e cables.