When I used to have an ordinary Sky TV box, it remained on 24 hours a day - which was how I liked it. I recently got a Sky Plus box and it switches itself off - goes into stand-by mode may be a more accurate description - overnight. So, when I turn my telly on of a morning, I have to turn Sky on too. Can I keep it on 24 hours (ie. stop it switching itself off) and, if so, how?