The glory moment of his past Al Bundy's life: scoring four touchdowns in a single game while playing for the Polk High School Panthers in the 1966 city championship game versus Andrew Johnson High School, including the game-winning touchdown in the final seconds against his old nemesis, "Spare Tire" Dixon (played by Bubba Smith in the episode "All-Nite Security Dude").
Al Bundy and his Polk High Panthers were not supposed to be playing against Andrew Johnson High that faithful day when he scored four touchdowns. Polk was in fact supposed to be playing against George S. Patton High (which was later remained "Jacqueline Onassis High" - with the team called the "Jackie O' First Ladies").
The reason Polk's bowl opponents were changed and that Al had to play against "Spare Tire" and Andrew Johnson was because the George S. Patton team were found prior to the game to be using "ringers" - overage players who had already graduated high school, but who were suiting up to play for Patton anyways to secure an advantage. Andrew Johnson was the next team in line, so they got to play Polk instead.
This fact was explained in the 1994 episode that was titled "The Dud Bowl", where the Polk alumni played against the Jackie O' First Ladies alums (a team which was also packed with former NFL ringers, resulting in Al taking a serious beating).
Polk High Anthem:
Oh Polk, you're the best of all the schools
For you we'll always cheer
By day, we learn to read and write
By night, our team will fight, fight fight
No matter where we are
We will always give a rah
Polk, Polk, Polk