It's been a while since I last watched anything from the original series, post-movie. Just curious, how many characters were actually built by the Autobots vs getting created before the great war? I remember the Ark crew building the Aerialbots ("Key to Vector Sigma") and the Dinobots, and I know Grimlock built the Technobots ("Grimlock's New Brain"), but I can't remember if any other characters were built as well. For example, was Metroplex built on Earth, or was he a character who came to Earth off-screen, and Autobot City was built around him to help hide him from the Decepticon's? What about the other combiner's? I've been trying to find the info, but I can't seem to find any specific details.