I think Heat Guy J can be considered a sleeper. I had never even heard of it before until a friend forced me to watch it. She tricked me with promises of a different anime series, got me over to her apartment, and inflicted this series upon me instead. I knew I wasn’t going to like it. I mean, the name sounds ridiculous. And it’s another futuristic, boy-and-his-robot story? No thank you! Obviously I was totally in love with it after the first episode. Sigh.