I watched the England semi final on a pub outdoor TV with approx 1.5 second discrepancy in latency between screens in different areas of the courtyard (no idea of the technical setup which achieved this). Learning the outcome of a shot/cross just as you watch the ball being struck is particularly weird (quite fun when a free kick is scored, arguably worse than a longer lag the rest of the time as there's little mystery about when/how something will happen)