The CBS Corporation was formerly known as Viacom. Following Viacom's split with CBS in 2005, Viacom dissolved and was re-established as the CBS Corporation. CBS acquired the rights to Viacom's Paramount Television, which was subsequently renamed CBS Paramount Network Television (now known as CBS Television Studios) and to UPN which subsequently merged with The WB to become The CW. CBS Corporation also continues to own Simon and Schuster and Paramount Parks, which previously fell under Viacom. One of CBS's other subsidiaries is magazine publisher CBS Communications, which publishes the The Official CBS Watch! Collector's Edition magazine series, in which three Star Trek-themed issues have been released, as of 2015.