I remember watching OTH and enjoying a better than average teenage show with my girlfriend for a couple of seasons before this episode aired. After it was over I was blown away by how much emotional weight it carried. I gained a new level of appreciation for how well made this show was after it was over. I won't go into detail as it's been covered here already but this episode really packs a punch and I'll always remember it as the one that solidified One Tree Hill as the quintessential teenage drama.