College football was the bigger attraction, but by the end of World War II, pro football began to rival the college game for fans' attention. Rule changes and innovations such as the T formation led to a faster-paced, higher-scoring game. The league also expanded out of its eastern and midwestern cradle; in 1945, the Cleveland Rams moved to Los Angeles, becoming the first big-league sports franchise on the West Coast. In 1950, the NFL accepted three teams – the Cleveland Browns, San Francisco 49ers, and Baltimore Colts – from the defunct All-America Football Conference, expanding to thirteen clubs. For a three-month period in 1950 the league was renamed the National-American Football League, that was subsequently changed back. In 1958, the Baltimore Colts and New York Giants played "The Greatest Game Ever Played" for the championship. Being the first nationally televised football game, along with its thrilling ending greatly increased the popularity of the NFL. Through these breakthroughs, pro football finally earned its place as a major sport.