 By the mid-1940s O'Hehir was recognised as one of Ireland's leading sports broadcasters.In 1947 he faced his most challenging broadcast to date when he had to commentate on the All-Ireland Football Final from the Polo Grounds in New York City.Over 1,000,000 people were listening to the broadcast back in Ireland and O'Hehir was the one link between the game in New York and the fans in Ireland.