Cool moment for Shaquille O'Neal -- he got to watch his kid, Shareef, hit the game-winning shot in a big high school hoops tournament ... and Papa Diesel couldn't have been prouder!
Shaq and the entire "Inside the NBA" team were broadcasting live from the CBS Studio Center in L.A. -- where Shareef's Crossroads high team was participating in the Future of Flight showcase tourney.
The big matchup was Crossroads vs. Beverly Hills High School ... which was tied up at 61 to 61 with seconds left in the game.