Audio problem: When Dawson goes into his bedroom to talk to Jen, he tells her that he had an entire "impassionate" speech to tell her. It sounds like he fumbled his dialogue, and meant to say either "impassioned" or "passionate," but got the words mixed up in his head and ended up blending them together. (00:33:40)
Audio problem: When Charlie is trying to hit on Joey at the College Bar, she makes fun of him referring to him as the "Bass Player to take home to Mom" or something similar. However, when you see and hear Charlie playing in the band during that episode, it sounds like he is specifically playing either electric lead or electric rhythm or both, *not* bass.
Answer: It's only explained once in the series. Jack says to Andie "I tried to start kindergarten without you", meaning Andie was smart enough to start school early.