Jason Hirschhorn, the former president of Sling Media's Entertainment Group who resigned from that position earlier this year, has been named chief product officer of News Corp.-owned social networking company, MySpace--in what may be a sign of MySpace's growing interest in providing broadband video programming and other digital entertainment content. Prior to joining Sling Media, where he was tasked with, among other things, implementing that company's broadband video entertainment service, Sling.com, Hirschhorn served as chief...