In an era of interactive television cables, the growth of computer checking and check-out counters, of security systems and telephones, all lodged together in computers, it would be relatively easy at some point to give a profile of a person and tell what they buy in a store, what kind of food they like, what sort of television programs they watch.

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The action was smooth and easy compatibility with 3D gaming on the PC should provide plenty of content while we wait for more true 3D games to hit consoles (which should ramp up after the PS3 update this summer) while checking out Blu-ray demos on a 50-inch television proved every bit as engaging this time as it did on the 152-inch CES display.

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The device features a touchscreen offering players the ability to carry out in-game tasks, such as checking their inventory or setting an explosive, while the main action continues on their television.

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Those glasses may enhance the viewing experience, but they would not help with checking e-mails, flicking through magazines and all the other things that people like to do while watching television.

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