When everyone arrives at Christine's apartment to watch TV about midway, the baby wets Mac's shirt. Mac's shirt is still wet at the end of the show, although an obviously long period of time has supposedly elapsed.
Roz is eating potato chips, and a sandwich with white bread. As she has diabetes that would be on her diet.
Harry boasts of being an offensive lacrosse player who scored the winning goal, but he carries a goalie's lacrosse stick.