Andi wanted to play Oblivion ever since she heard someone mention it on Loading Ready Run. I've wanted to play it, too; but neither of us wanted to put the isolated time required into finishing such a long, in-depth game. (Especially since I got it on Steam, so it's not something you can just sit down and play in the living room.)
Our solution has been to play together, on the same character. We're taking turns alternating playing and taking notes, and we're posting the results (for better or for worse) here.