Complex sentence: A short time after the station was shut down, a group of fans got together with their collected video tapes of the show and tracked down the puppeteer (Tristan Newcomb), obtaining his permission to put together an "official" DVD of all the episodes.
Split into simpler sentences: A short time later, a group of fans got together with their collected video tapes of the show. After tracking down the puppeteer (Tristan Newcomb) and obtaining his permission, they put together an "official" DVD of all the episodes.