A mighty German company has figured out a way to transmit television signals through the same wires that handle electricity. Devolvo demoed its creation a CeBIT, though for now the technology can only transmit one TV signal at a time. The technology is still in its infancy (even though companies have had ways to share a network connection via the very same wires for a while now) and uses IP to transmit the signal through the wires, with 200m said to be the maximum range. Devolvo didn’t bother telling anyone when (or if) their contraption will be actually available, nor for how much. That’s useless information anyway.
TV to come through mains supply [BBC News]
This is not a new concept – basically you can frequency shift the tv signal and overlay it on the 50/60Hz AC line then do the reverse on the other end. Don’t know how practical this could be as power companies will most likely filter out unwanted frequencies..