I thought as much as well. IIRC, sideline screens aren't all that large. And they're likely not in HD resolutions either.
The NFL went to HD displays for their IR displays that the R views to uphold/reverse a challenged play.
IMO, with HD readily available, and way cheaper than it ever has been, there's no reason not to implement HD. Where possible, use native HD resolution; none of this 1366x7?? crap.
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Pope Francis
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