I actually thought I had these, but I don't... fortunately Google does. I don't think this is all of it though. And there wasn't one for Himatsubushi-hen, was there?
Onikakushi-hen Discussion: (
1,
2)
Watanagashi-hen Discussion: (
1,
2,
3)
Tatarigoroshi-hen Discussion: (
1,
2)
I'll post some actual discussion when I've seen episode 15. ^^