Got Sky HD and plugged it in. Nice menus I thought , as predicted my wife looks at HD picture and says "it doesn't look any different" 
They are genetically programmer with that response and every woman on the planet will have the same response.
It's the same as when she shows me two sets of curtains and asks mr which one I like the most. I'm not equipped to answer such questions , it's like asking a loaf of bread whether it prefers mac or pc.