Hello I have a very bizarre case. I have installed a GE Pro Outdoor Antenna in the roof of my house and directed the antenna towards the towers that give the signal. When I plug the antenna directly to one TV I get all the channels I was expecting to get. But when I plug in the antenna into my house that came prewired for cable I get some of the channels and others don't. I am not sure why with the same antenna in the same position I get all the channels clearly when I plug it in to only one tv and when I plug it in to my house the same tv or any other tv in my house do not get all the channels. Can you please help?