On his way to his old high school, Kevin asks the driver to make a little detour so he can go see his childhood home. When he gets to the house and just before he gets out of the car, the house number is 1920. When the current resident comes out and asks Kevin: "Hey, can I help you?", the house number next to the front door has changed to 1646. Then when Kevin leaves, the number changes back to 1920.
Kevin says that his football number was 1 and that it was like destiny because he had that moniker since he was born. However there is an episode when Kevin and Randall get into a fight on the football field in which his number was 14, not 1.