One for all sv1715 also has an infra red eye which allows you to remotely change channel on the sky or cable box or control your dvd player etc from the secondary room if youve gone to bed and are watching sky or a dvd in bed using the sv1715 receiver in the bedroom you can pause the dvd or change channel with out having to get up just use your normal remote or buy your self a secondary remote or buy one of the one for all remotes such as the kameleon range you then have total control in the sec