I agree the rotating fridge was odd, but the fact that it dispensed beer made up for the oddity.
My wife and I agreed that it is probably an actual "home of tommorrow" model house they used and not a set. Of course, the "personality" of the house was added in for the scifi effect. I also suggested that if it was a model home, that the occupants would probably have to wear RFID brecelets or the like in order for the automation that was occuring to actually occur. Of course, for the show (and if this was a real model home) they probably had engineers controlling the various items manually. And, I guess the model home wouldn't be in a bunker either...