August 5, 1921 – It was a huge moment in sports broadcasting history! KDKA of Pittsburgh broadcasted the first radio play-by-play of an MLB game.
The contest between the hometown Pirates and their cross-state rival the Philadelphia Phillies was heard through the voice of Harold Arlin, the first play-by-play announcer on radio. In the game, the Pirates blanked the Phillies, 8-0.
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