Very clever way using the technology of the time. Someone definitely has video editing skills. It seemed very real. The producers and NFL films got together and excavated hours of footage from games which focused on the 4 titled very best of their decade. Then they detailed games and edited them for the games actually played against each other. And then, they had to research all the players to ensure they got the right names for when they used them in the hypothetical game. Then at the end, when they generalized how the games would result, put the together the top 2 in order to create a Superbowl like experience.
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