I've never had a wordpress blog but I've had a blogger blog and I don't know that there is any way to do that. Do you have tags for your posts? (S1, S2 and the like?) That would be tremendously helpful.

Also, 2maggie2 has a "master list" pinned to the top of her LJ of meta posts including links to all individual episode notes, and it works extremely well. Could you do something like that? I don't know if blogs allow "sticky posts" pinned at the top like that. That would be a good deal easier than trying to repost everything I should think.