О! Нашел!
Прям на той странице, куда сцылка ведет. Только сбоку (фиговые они дизайнеры, раз тупым юзерам сразу всего не видно).
How does it work? The Groove Tube is a translucent, box-shaped screen that uses two suction cups to attach to your TV screen. Inside the Groove Tube
is a grid of opaque dividers. The translucent white plastic screen averages the television’s pixels, and the opaque grid dividers create a unique, ever-changing, distinct color in each square. As the TV (or computer screen) image changes, so do the colors on the Groove Tube. This innovative accessory will change your TV from into a work of colorful, abstract art that changes in rhythm with whatever is on the channel. The faster the TV action, the more your Groove Tube will “groove.”. We love to have the Groove Tube on during parties, as it sets the perfect mood. To further
enhance the vibe, mute your TV and play your favorite music in conjunction with the Groove Tube. Although it is just an illusion, your screen will seem to pulse, colorize, and change in harmony with the beats. Designed:
Matt Griesey, 2004, Seattle Washington.
Как понял, фиговина надевается на экран. С одной стороны типа фотоэлемент, принимает с икрана картинку, потом усредняет цвет по квадрату и отображает его с внешней стороны... Куча электроники, видать...