All this makes me think that episode 4 or 5 has unused audio concerning Christa's pregnancy and Lee informing the group of Chuck's death.
@Jake
Your answer suggests that these cut audios were fully functional and completed scenes,is that the case?
I understand that you had your reasons to cut them, due to story reasons and pacing, but I'd love to see them.Don't let them go to waste,why not include them as deleted scenes in the retail version?
I really enjoyed these characters and I'd enjoy seeing more of them, it would also give me a reason to buy the game again.