I started keeping up when I was in the sixth grade, circa 1970. OU played Pete Maravich and LSU in the NIT and lost a great game.
But, because my parents went to OU when they were terrible in men's basketball, they had no interest in going to Norman for any games. So during my senior year, I finally decided I wanted to go up to Norman (from Ardmore, when we lived there) and see OU take on OSU in January of 1976.
That game drew OU's biggest-ever basketball crowd of around 7,000 people. Of course, most of the hubbub was over the presentation of the '75 football trophies for the two wire-service national titles at halftime. But, that night also saw the first-ever LNC win, 57-42 over OSU.
That was a really strange season overall, but it got fun in a hurry. OU barely played any home games early in that season, which was Dave Bliss' first as a college head coach. They lost their only two non-conference home games (ORU and Texas), and I believe dropped one to KSU to start league play. And, Bliss' inherited roster was really low on height and overall quality - so by league play they were starting two freshmen (John McCullough at 6-4 and Cary Carrabine at 6-3), a 5-10 guard (Eddie Fields), another 6-4 forward (Billy Graham) and a 6-7 "center" named Rick McNeil.
Not long after the OSU win, the smallish Sooners knocked off Nebraska, which was heavily favored, and even beat two-time Big 8 champ Kansas in Lawrence, 64-63. I can't remember if it was before or after that KU game, but the Sooners hosted a Top 10 Mizzou team on a Saturday night. They ran the motion offense to perfection that night, led wire-to-wire, and beat the Tigers by 12. That was my second "live" college basketball game, and my high school buddy (and future OU freshman-year roommate) and I were just giddy over being newly minted basketball fans.
The team only won 9 games, but after something like a 2-10 start, that wasn't bad. McCullough, Fields and Carrabine led the '76-77 team to an 18-10 season, unbeaten home record, and some of the wildest home crowds that OU had ever seen. And some kid from then-basketball-poor Ardmore was hooked on the sport.