I work for a small public access station that uses a 4DTV to pull down Free-To-Air content for rebroadcast on our channels. Soon I am going to be recording things off the 4dtv overnight, and as such need it to automatically switch satellites. The problem is that no matter what I set in the timer, it never changes. Is there a trick to getting the timer to function? The timer light on the front never comes on, which has me suspicious. Is this a common problem, or am I just being stupid and forgetting something?