I have a HDTV , Right now I have the Dish. I need more tv's running (3 kids) I have 2 dish recievers, I need 2 more. The Dish people want 149.00 to hook up 2 more recievers. I have 4 hookups for cable. I am satified with the picture with the Dish. Will the picture look the same with analog cable(Comcast)?