Michael T. Smith, who ankled as chairman-CEO of Hughes Electronics Corp. in May, has joined the board of NeTune Communications, the Los Angeles company behind ShowRunner, a satellite system that enables film and television productions to distribute everything from digital dailies to scripts. Before Hughes, Smith was chairman of DirecTV Latin America and PanAmSat, as well as chairman of Hughes Aircraft Co. Smith will help build NeTune’s customer base, which currently includes Warner Bros.’ “Harry Potter and the Sorcerer’s Stone.” The company, which was founded in 1999 by Curtis Clark, competes with rivals Global Crossing, Wam!Net, Media.net and Picture Pipeline. It is repped by CAA.