Lewis's UH teams twice played key roles in high-profile events that helped to popularize college basketball as a spectator sport. In 1968, his underdog, Elvin Hayes-led Cougars upset the undefeated and top-ranked UCLA Bruins in front of more than 50,000 fans at Houston's Astrodome. The game became known as the “Game of the Century” and marked a watershed in the popularity of college basketball. In the early 1980s, Lewis's Phi Slama Jama teams at UH gained notoriety for their fast-breaking, "above the rim" style of play as well as their overall success. These teams attracted great public interest with their entertaining style of play. At the height of Phi Slama Jama's notoriety, they suffered a dramatic, last-second loss in the 1983 NCAA Final that set a then-ratings record for college basketball broadcasts and became an iconic moment in the history of the sport. Lewis's insistence that these highly successful teams play an acrobatic, up-tempo brand of basketball that emphasized dunking brought this style of play to the fore and helped popularize it amongst younger players.