A signal from the TV tells each side of the glasses when to turn on and off, showing each eye slightly different images that create the sense of depth.
VOA: special.2010.01.26
Recently a Best Buy advertisement for a TV caught my eye.
Robert Mondavi, a unit of Constellation, last month tapped Ted Allen, a star of the TV show Queer Eye for the Straight Guy, to host wine tastings at restaurants in Manhattan.