Hi. I have an old digital box that I removed when I got HD PVR for my main television. I have been running the secondary units for years in basement and office. Decided I wanted to use a small television in the bedroom. Previously, was just using this direct from cable with no box as I generally just watch one channel anyways. But now that no longer possible, so I hauled out the old box. Seems just to be spinning its wheels, so I suspect it is no longer activated. Can you help me with this?