NFL sideline tech inches forward, still no video
NFL teams used to take Polaroid pictures of plays from atop the stadium during games then send them down to the field on a rope. Technology improved so that an automated camera could deliver the images to a printer on the sideline, creating that familiar sight of a quarterback staring at a sheet of paper to figure out what went wrong on an interception. That was still the case last season, when fans in the stands could watch highlights on their smartphones, but players and coaches were flipping through three-ring binders of black-and-white photos. The NFL sideline is finally...
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