I would put a 23-element UHF antenna (from DSE) on the roof (same pole as VHF antenna) then plug them both antennas into a diplexer. Would this then carry both signals to the multiple tv's around the house? I don't want to lose my analogue TV signal as not all tv's have STB, else I could just replace the VHF antenna with a UHF one.
Is the 23-element antenna enough to get a good signal (I live in central Upper Hutt)? Would I be better to replace the VHF antenna with a VHF/UHF combo antenna? It is about the same price as the UHF one and diplexer anyway.
Thanks for the help :D