I have an openbox v8s, a zgemma h2s and an old SKY box all running freesat with no problems from separate leads on a quad lnb, my problem begins when I try to unplug she openbox v8s as I no longer use/need it. If I unplug the HDMI from the box or TV the picture on my zgemma (plugged into the same TV) freezes and the same happens if I try unplugging the antenna lead. I wanted to keep the openbox running until the zgemma was set up and running as I had a spare antenna lead now I can't get rid of it as the zgemma will die. Plllllease help.