On January 20 1968
Jan. 20, 1968: Houston defeats UCLA in the Astrodome to end the Bruins’ 47-game winning streak before a crowd of 52,693, at the time the largest crowd at a college basketball game.
Sources:
Sources: “In the Arena: The NCAA’s First Century” by Joseph N. Crowley, NCAA News and Champion magazine archives, the NCAA Media Center, and NCAA record books