I bought a battery backup for my system. I have a 52" DLP + home theater system + satellite DVR plugged in to it.

The model I have is a APC Back-UP ES .



Can't remember what I paid for it, but it wasn't too expensive - under 100 dollars anyway. It's already saved me a couple of times when the power has gone out and does offer a level of surge protection too. Gives me plenty of time to shut off the TV and components in the event of an outage.