Last night I got home and my THD had lost all it's channels. None were showing up at all. This THD does not have a cable card, tuning adapter, or any of those new-fangled Copy Protection wrappers cable companies like to unload on unsuspecting customers. Just a plain vanilla THD with no mods. I restarted the box and the channels came back. In fact, I shorted the intro video by going to the TiVo menu and hit live TV. I saw a message for a moment or two that it was locating channels. Wouldn't the analog tuner have just shown them? Ideas on what might have happened? Is my box dying?