FakeTV emulates human watching the tube, supposedly discourages thieves - Engadget:
What else can we say? The concept here is pure genius, and it totally makes those pricey security systems seem way pointless (okay, slightly less critical). The FakeTV is a strobe that sets up in an occupied room at night and flashes up beams of light. From the inside, we can imagine it looks fairly curious, but from the outside, it gives prospective burglars the idea that someone is actually awake and watching a television program. It promises to produce the effects of "scene changes, fades, swells, flicks, on-screen motion and color changes," just like they were generated by a bona fide set.