Question: Turner Broadcasting System, Inc., is an American media conglomerate that is a division of Time Warner and manages the collection of cable television networks and properties initiated or acquired by Ted Turner, the original home of Turner's WTBS superstation (now separated into its TBS cable network and Peachtree TV), which today houses the headquarters of what and Williams Street Productions?
Sentence (from "Williams Street"): Williams Street Productions, LLC, (commonly known as Williams Street, and formerly known as Ghost Planet Industries, named after Space Ghost's home planet), is an animation studio that is owned by Cartoon Network and Turner Broadcasting System, which are both subsidiaries of Time Warner.
Relevant evidence: Yes