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In a somewhat similar exercise: Early 1980s, there were some exhibits available from an art gallery near me of 3D videos;
Two U-matic cassettes per program (needed genlocking, so that ruled out Beta or VHS), designed to be run through two projectors (back then 3xCRT types) each with polarizing filters over the lenses. Not really geared to home use, considering the cost of that kind of hardware then.
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