Can anyone explain this to me. I have 2 zgemmas working 2 TVs. Both cables are running side by side for about 15 metres until cable a A goes into TV1. Then cable B travels another 5 metres on its own to TV2. My conundrum is that when I have TV1 plugged out the signal on TV2 drops to the point of it being totally unwatchable. I hope I've made sense