I've been thinking about it, well i would wouldn't i, and it does make sence.If they have ccctv then not only can they see the comings and goings of their neighbours, who's going out to smoke a fAg and when, advance warning of any visitors, and sometimes handy to know when the postman has just been.
So, if they are not watching telly, the veiw of the front door would be the best default. Natural really and quite a good idea, as opposed to nosey.
Anyway a good spot and comment on human nature, but from the quiz point of view and for us unknowable, so well done mr griffin.