Looking throught the instruction of my Amstrad Sky Digital box (page 49), the rear of the unit appears to have a "general purpose Digital Interface", protected by a covering plate. For "future plug in modules", apparantly. Any ideas what this means? Has anyone peered underneath to see what is hiding? A digital output perhaps? If so, why does it need to be hidden? If no-one can enlighten me I will take off the plate and have a look this week-end!