When I first saw Misa, I doubted whether she could be a large challenge to Light, though after watching this episode, I have to say that it’ll definitely be interesting to see how Light will deal with such a huge idiot. She actually mentioned the existence of the eyes and shinigami on a tape which got sent to the police. L also reacted quite strangely when he heard about the shinigami, this does suggest that there’s some kind of connection between him and the death gods, which suggests that there will be a point in which his childhood will be shown. :)
I also keep wondering the meanings of Ryuk’s maniacal laughter. Like shown before, he laughed when Naomi gave a false name. Was there also a reason why he laughed when L asked Kira to play Kira, or did he just laugh because of the irony? He’s smarter than he looks, after all, he did trick the king of the shinigami-world to give him a second Death Note. In any case, it’s good for light that he was at the scene when L watched the tape, otherwise, L would have pulled his own conclusions. This episode showed that L does listen to Light’s words.