From 1940 to 1946, the Bears displayed their dominance in the game, playing in five NFL championship games, winning four, and posted a 54–17–3 regular-season record. In 1942, the Bears posted a perfect 11–0 record and outscored their opponents, 376–84, however, they lost the championship game to the Redskins. Although the T-formation had been used many years before Luckman joined the Chicago Bears, he was central to Chicago's successful use of this style of play because of his game-sense and versatility. Perfecting Halas' complex offensive scheme of fakes, men in motion, and quick-hitting runs, Luckman added the dimension of accurate downfield throwing. He was instrumental in his team's record-setting 73–0 win over the Washington Redskins in the 1940 NFL championship game. Sportscaster Jimmy Cannon once said in reference to Luckman's years at Columbia, "You had to be there to realize how great Sid was." Luckman later became a sought-after tutor and instructor for universities wishing to install the T-formation as an offense.