I specialize in commercial installations where sometimes static images are left on television screens by mistake. While it causes some problems with CRT screens, it runins plasma displays.

Does anyone know of a product or device that can detect non-movement in a picture? Some security products (DVRs and multiplexers) utilize circuitry that eliminates scenes that show no change to save recording space.

I would like to find a product that would trigger a relay when it sees no video change for a pre-determined length of time. It could switch an input to a source with changing video or it could initiate a "play" command to a DVD player to prevent burn-in. Plasmas probably should have a screen-saver mode built in like a computer does, but I would love to find an aftermarket device that would do the job. Does anyone know of such a device? If not, would other installers find the device useful if I was to develop one?

Check out the Roku HD1000. It upconverts S-vid to component and passes component. It has a screen protection circuit for stationary images. It does a bunch of other stuff too.

What a great product! Extron has products that can rotate an image slowly so that screen burn-in is minimized, but they are in the thousands of dollars and only blur the edges of burn-ins, don't eliminate them! I san see how this would also be thousands, but it is up to date and definitely has more uses than just burn-in elimination.

From [Link: rokulabs.com]

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*Note: Roku can't prevent all types of burn-in, and it's ultimately the users' responsibility to consult their display owner's manual and use their common sense.>>

Oh, rats. We still have to use our common sense, and even worse, we might have to crack the binding on the manual.